## PA DEP TENORM Study Report

– Appendix G Rev. 0

January 2015 

## APPENDIX G

T-TEST OUTPUT FILES1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 11535 849 6.474 0.000 Variance of Sample 2 377715 Test of Equality of Variances

Variance of Sample 1 2445469 Pooled SD 1517.798 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 1821.7 24.366 1.646 0.000 Pooled (Equal Variance) 12384 11.572 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1564 614.6 SE of Mean 14.56 21.08 Mean 11759 11135 Median 11456 11050 Minimum 4106 9766 Maximum 17778 13268 Number of Valid Observations 11536 850 Number of Distinct Observations 4533 691 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-01 Sample 2 Data: BR-02 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Farmview.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:52:03 AM1

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Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2905 2388 1.202 0.000 Variance of Sample 2 2098981 Test of Equality of Variances

Variance of Sample 1 2522583 Pooled SD 1526.915 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 5236.1 3.462 1.645 0.000 Pooled (Equal Variance) 5293 3.431 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1588 1449 SE of Mean 29.46 29.64 Mean 12655 12511 Median 13022 12843 Minimum 7892 7975 Maximum 16512 15641 Number of Valid Observations 2906 2389 Number of Distinct Observations 2288 1860 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-04 Sample 2 Data: BR-07 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Hig.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:45:34 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2388 1386 3.922 0.000 Variance of Sample 2 2098981 Test of Equality of Variances

Variance of Sample 1 535230 Pooled SD 1234.785 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 3712.4 25.309 1.645 0.000 Pooled (Equal Variance) 3774 21.591 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 731.6 1449 SE of Mean 19.64 29.64 Mean 13411 12511 Median 13431 12843 Minimum 10936 7975 Maximum 16067 15641 Number of Valid Observations 1387 2389 Number of Distinct Observations 1073 1860 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-05 Sample 2 Data: BR-07 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_saxes.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:46:59 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2388 1451 3.284 0.000 Variance of Sample 2 2098981 Test of Equality of Variances

Variance of Sample 1 639154 Pooled SD 1243.873 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 3807.4 23.461 1.645 0.000 Pooled (Equal Variance) 3839 20.584 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 799.5 1449 SE of Mean 20.98 29.64 Mean 13363 12511 Median 13430 12843 Minimum 9875 7975 Maximum 15757 15641 Number of Valid Observations 1452 2389 Number of Distinct Observations 1140 1860 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-06 Sample 2 Data: BR-07 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Dut.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:43:29 AM1

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Conclusion with Alpha = 0.05 Two variances appear to be equal Numerator DF Denominator DF F-Test Value P-Value 221 5589 1.129 0.194 Variance of Sample 2 541763 Test of Equality of Variances

Variance of Sample 1 480066 Pooled SD 694.560 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 236.8 0.602 1.651 0.274 Pooled (Equal Variance) 5810 0.636 1.645 0.262 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 692.9 736 SE of Mean 9.267 49.4 Mean 11990 11960 Median 11988 11998 Minimum 9771 10313 Maximum 14234 13565 Number of Valid Observations 5590 222 Number of Distinct Observations 2387 214 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-08 Sample 2 Data: BR-09 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Westgate.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:53:21 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 9252 595 2.839 0.000 Variance of Sample 2 349106 Test of Equality of Variances

Variance of Sample 1 991059 Pooled SD 975.843 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 830.7 40.635 1.647 0.000 Pooled (Equal Variance) 9847 25.936 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 995.5 590.9 SE of Mean 10.35 24.2 Mean 11968 10898 Median 11977 10882 Minimum 5888 9449 Maximum 15179 12762 Number of Valid Observations 9253 596 Number of Distinct Observations 3326 504 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-10 Sample 2 Data: BR-11 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Spencer.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:51:06 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 4643 960 1.921 0.000 Variance of Sample 2 417094 Test of Equality of Variances

Variance of Sample 1 801263 Pooled SD 857.578 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 1815.6 -86.756 1.646 1.000 Pooled (Equal Variance) 5603 -70.304 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 895.1 645.8 SE of Mean 13.14 20.83 Mean 9136 11273 Median 9121 11311 Minimum 6114 9526 Maximum 12050 13180 Number of Valid Observations 4644 961 Number of Distinct Observations 2532 793 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-12 Sample 2 Data: BR-13 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Wildcat.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:49:12 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1358 5394 1.148 0.001 Variance of Sample 2 1271858 Test of Equality of Variances

Variance of Sample 1 1108213 Pooled SD 1068.235 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 1995.4 -3.383 1.646 1.000 Pooled (Equal Variance) 6752 -3.525 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1053 1128 SE of Mean 14.33 30.59 Mean 10759 10873 Median 10861 10816 Minimum 2032 7695 Maximum 14053 14509 Number of Valid Observations 5395 1359 Number of Distinct Observations 2811 1151 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-15 Sample 2 Data: BR-14 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_blake.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:54:41 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 4387 591 2.721 0.000 Variance of Sample 2 212790 Test of Equality of Variances

Variance of Sample 1 579070 Pooled SD 731.836 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 1084.9 42.445 1.646 0.000 Pooled (Equal Variance) 4978 29.364 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 761 461.3 SE of Mean 11.49 18.96 Mean 11555 10614 Median 11586 10587 Minimum 9100 9470 Maximum 13870 12360 Number of Valid Observations 4388 592 Number of Distinct Observations 2285 498 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-17 Sample 2 Data: BR-16 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_Swede.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:56:29 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 5230 726 2.238 0.000 Variance of Sample 2 378912 Test of Equality of Variances

Variance of Sample 1 848085 Pooled SD 889.323 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 1231.4 75.962 1.646 0.000 Pooled (Equal Variance) 5956 56.411 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 920.9 615.6 SE of Mean 12.73 22.83 Mean 9510 7524 Median 9395 7479 Minimum 6821 6066 Maximum 16990 9949 Number of Valid Observations 5231 727 Number of Distinct Observations 2427 614 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-18 Sample 2 Data: BR-19 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Pro_crippen.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 8:58:12 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 3943 876 2.148 0.000 Variance of Sample 2 807781 Test of Equality of Variances

Variance of Sample 1 1734740 Pooled SD 1251.494 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 1820.2 5.798 1.646 0.000 Pooled (Equal Variance) 4819 4.578 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1317 898.8 SE of Mean 20.97 30.35 Mean 8825 8611 Median 8747 8560 Minimum 5404 6232 Maximum 13511 12463 Number of Valid Observations 3944 877 Number of Distinct Observations 2708 769 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-20 Sample 2 Data: BR-21 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Clark_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:17:14 AM1

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Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 703 3374 1.940 0.000 Variance of Sample 2 2710464 Test of Equality of Variances

Variance of Sample 1 1396851 Pooled SD 1274.111 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 860.2 -11.140 1.647 1.000 Pooled (Equal Variance) 4077 -13.780 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1182 1646 SE of Mean 20.34 62.05 Mean 8590 9317 Median 8498 9019 Minimum 5349 5947 Maximum 13217 13126 Number of Valid Observations 3375 704 Number of Distinct Observations 2310 665 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-23 Sample 2 Data: BR-22 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Mckinney_campbell_c.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:21:43 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 703 3374 1.940 0.000 Variance of Sample 2 2710464 Test of Equality of Variances

Variance of Sample 1 1396851 Pooled SD 1274.111 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 860.2 -11.140 1.647 1.000 Pooled (Equal Variance) 4077 -13.780 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1182 1646 SE of Mean 20.34 62.05 Mean 8590 9317 Median 8498 9019 Minimum 5349 5947 Maximum 13217 13126 Number of Valid Observations 3375 704 Number of Distinct Observations 2310 665 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-24 Sample 2 Data: BR-22 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Mckinney_campbell_c.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:23:38 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1983 342 2.772 0.000 Variance of Sample 2 797172 Test of Equality of Variances

Variance of Sample 1 2210101 Pooled SD 1415.014 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 719.9 -7.585 1.647 1.000 Pooled (Equal Variance) 2325 -5.375 1.646 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1487 892.8 SE of Mean 33.38 48.21 Mean 7781 8226 Median 7436 8254 Minimum 5069 5882 Maximum 13248 11208 Number of Valid Observations 1984 343 Number of Distinct Observations 1608 328 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-25 Sample 2 Data: BR-26 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Roberts_Hill_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:26:09 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 3375 578 1.669 0.000 Variance of Sample 2 912904 Test of Equality of Variances

Variance of Sample 1 1523192 Pooled SD 1197.479 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 942.9 -10.702 1.646 1.000 Pooled (Equal Variance) 3953 -8.947 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1234 955.5 SE of Mean 21.24 39.71 Mean 7785 8267 Median 7678 8281 Minimum 4597 5708 Maximum 12475 11333 Number of Valid Observations 3376 579 Number of Distinct Observations 2328 545 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-28 Sample 2 Data: BR-27 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Piper_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:27:43 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2555 758 7.476 0.000 Variance of Sample 2 494907 Test of Equality of Variances

Variance of Sample 1 3700154 Pooled SD 1722.442 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 3192.1 34.159 1.645 0.000 Pooled (Equal Variance) 3313 21.984 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1924 703.5 SE of Mean 38.05 25.54 Mean 9490 7925 Median 9041 7965 Minimum 5309 5687 Maximum 14465 10360 Number of Valid Observations 2556 759 Number of Distinct Observations 2103 655 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-29 Sample 2 Data: BR-30 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Etzel_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:29:04 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 7244 1957 1.099 0.010 Variance of Sample 2 1250949 Test of Equality of Variances

Variance of Sample 1 1374541 Pooled SD 1161.143 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 3215.3 -10.161 1.645 1.000 Pooled (Equal Variance) 9201 -9.890 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1172 1118 SE of Mean 13.77 25.28 Mean 9801 10093 Median 9744 10057 Minimum 6200 6527 Maximum 14415 14117 Number of Valid Observations 7245 1958 Number of Distinct Observations 3605 1541 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-31 Sample 2 Data: BR-32 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Allegheny_e.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:39:03 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1957 2602 2.885 0.000 Variance of Sample 2 1250949 Test of Equality of Variances

Variance of Sample 1 433556 Pooled SD 885.681 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 2959.1 -59.459 1.645 1.000 Pooled (Equal Variance) 4559 -63.691 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 658.4 1118 SE of Mean 12.91 25.28 Mean 8406 10093 Median 8442 10057 Minimum 6030 6527 Maximum 10975 14117 Number of Valid Observations 2603 1958 Number of Distinct Observations 1587 1541 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-33 Sample 2 Data: BR-32 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Allegheny_e.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:39:57 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1957 3346 2.003 0.000 Variance of Sample 2 1250949 Test of Equality of Variances

Variance of Sample 1 624642 Pooled SD 925.080 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 3112.0 -65.515 1.645 1.000 Pooled (Equal Variance) 5303 -71.518 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 790.3 1118 SE of Mean 13.66 25.28 Mean 8211 10093 Median 8276 10057 Minimum 5340 6527 Maximum 11448 14117 Number of Valid Observations 3347 1958 Number of Distinct Observations 1991 1541 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-34 Sample 2 Data: BR-32 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Allegheny_e.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:40:55 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1957 2185 1.461 0.000 Variance of Sample 2 1250949 Test of Equality of Variances

Variance of Sample 1 855972 Pooled SD 1021.073 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 3809.4 -31.704 1.645 1.000 Pooled (Equal Variance) 4142 -32.033 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 925.2 1118 SE of Mean 19.79 25.28 Mean 9076 10093 Median 9036 10057 Minimum 5972 6527 Maximum 12056 14117 Number of Valid Observations 2186 1958 Number of Distinct Observations 1590 1541 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-35 Sample 2 Data: BR-32 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Allegheny_e.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:41:55 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 974 10256 1.144 0.004 Variance of Sample 2 559612 Test of Equality of Variances

Variance of Sample 1 489004 Pooled SD 703.653 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 1141.8 -17.759 1.646 1.000 Pooled (Equal Variance) 11230 -18.776 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 699.3 748.1 SE of Mean 6.905 23.96 Mean 8059 8502 Median 8069 8566 Minimum 5591 5693 Maximum 11617 10981 Number of Valid Observations 10257 975 Number of Distinct Observations 2917 802 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-37 Sample 2 Data: BR-36 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Warner_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:43:27 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances appear to be equal Numerator DF Denominator DF F-Test Value P-Value 405 1123 1.040 0.624 Variance of Sample 2 437624 Test of Equality of Variances

Variance of Sample 1 420889 Pooled SD 652.169 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 704.6 -1.538 1.647 0.938 Pooled (Equal Variance) 1528 -1.552 1.646 0.940 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 648.8 661.5 SE of Mean 19.35 32.83 Mean 7920 7979 Median 7942 8006 Minimum 6124 6105 Maximum 10535 10668 Number of Valid Observations 1124 406 Number of Distinct Observations 899 372 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-39 Sample 2 Data: BR-38 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Snyder_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:45:10 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances appear to be equal Numerator DF Denominator DF F-Test Value P-Value 509 3711 1.081 0.231 Variance of Sample 2 461244 Test of Equality of Variances

Variance of Sample 1 426595 Pooled SD 656.334 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite Test: Do Not Reject H0, Conclude Sample 1 <= Sample 2 Welch-Satterthwaite (Unequal Varian 645.1 -3.360 1.647 1.000 Pooled (Equal Variance) 4220 -3.461 1.645 1.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 653.1 679.1 SE of Mean 10.72 30.07 Mean 7866 7974 Median 7883 8001 Minimum 5684 5868 Maximum 11617 10227 Number of Valid Observations 3712 510 Number of Distinct Observations 1933 458 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-40 Sample 2 Data: BR-41 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Stewart_rd_b.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 9:48:08 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 5222 916 9.262 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 3093174 Pooled SD 1637.499 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 4315.6 120.780 1.645 0.000 Pooled (Equal Variance) 6138 63.708 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1759 577.9 SE of Mean 24.34 19.08 Mean 9995 6260 Median 9911 6195 Minimum 5710 5017 Maximum 15498 8437 Number of Valid Observations 5223 917 Number of Distinct Observations 3569 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-44 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:27:31 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 1398 916 7.017 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 2343289 Pooled SD 1244.142 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 1932.6 105.293 1.646 0.000 Pooled (Equal Variance) 2314 89.945 1.646 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1531 577.9 SE of Mean 40.93 19.08 Mean 11015 6260 Median 11268 6195 Minimum 6376 5017 Maximum 15390 8437 Number of Valid Observations 1399 917 Number of Distinct Observations 1219 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-45 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:28:42 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 3433 916 2.024 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 675865 Pooled SD 777.078 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 2016.5 42.165 1.646 0.000 Pooled (Equal Variance) 4349 34.574 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 822.1 577.9 SE of Mean 14.03 19.08 Mean 7258 6260 Median 7252 6195 Minimum 5177 5017 Maximum 10560 8437 Number of Valid Observations 3434 917 Number of Distinct Observations 2071 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-47 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:29:32 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 3151 916 4.594 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 1534298 Pooled SD 1124.254 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 3291.6 59.338 1.645 0.000 Pooled (Equal Variance) 4067 41.035 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1239 577.9 SE of Mean 22.06 19.08 Mean 7991 6260 Median 7868 6195 Minimum 5208 5017 Maximum 12338 8437 Number of Valid Observations 3152 917 Number of Distinct Observations 2256 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-48 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:30:29 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2927 916 6.022 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 2011042 Pooled SD 1269.369 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 3610.4 88.353 1.645 0.000 Pooled (Equal Variance) 3843 59.629 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1418 577.9 SE of Mean 26.21 19.08 Mean 9124 6260 Median 8906 6195 Minimum 5523 5017 Maximum 14314 8437 Number of Valid Observations 2928 917 Number of Distinct Observations 2225 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-49 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:31:45 AM1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ABCDEFGH I J K L

Conclusion with Alpha = 0.05 Two variances are not equal Numerator DF Denominator DF F-Test Value P-Value 2292 916 3.407 0.000 Variance of Sample 2 333953 Test of Equality of Variances

Variance of Sample 1 1137676 Pooled SD 952.987 Conclusion with Alpha = 0.050 Student t (Pooled) Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite Test: Reject H0, Conclude Sample 1 > Sample 2 Welch-Satterthwaite (Unequal Varian 2935.0 103.387 1.645 0.000 Pooled (Equal Variance) 3208 81.442 1.645 0.000 Method DF Value t (0.05) P-Value Sample 1 vs Sample 2 Two-Sample t-Test

H0: Mean of Sample 1 - Mean of Sample 2 <= 0 t-Test Critical SD 1067 577.9 SE of Mean 22.27 19.08 Mean 9292 6260 Median 9315 6195 Minimum 6066 5017 Maximum 12933 8437 Number of Valid Observations 2293 917 Number of Distinct Observations 1723 752 Raw Statistics Sample 1 Sample 2 Sample 1 Data: BR-50 Sample 2 Data: BR-46 Substantial Difference (S) 0.000 Selected Null Hypothesis Sample 1 Mean <= Sample 2 Mean (Form 1)

Alternative Hypothesis Sample 1 Mean > the Sample 2 Mean From File Buffalo TWP UCL.xls Full Precision OFF Confidence Coefficient 95% t-Test Sample 1 vs Sample 2 Comparison for Uncensored Full Data Sets without NDs

User Selected Options Date/Time of Computation 12/22/2014 10:32:38 AM