For some pairs of variables, you may want to examine the existence or the strength of any association between the variables. To determine if an association exists, chi-square tests are computed. Exact p -values and confidence intervals are available for various test statistics and measures. PROC FREQ also performs stratified analyses that compute statistics within, as well as across, strata for n -way tables. You should exercise care in selecting measures that are appropriate for your data.
Similar comments apply to the choice and interpretation of the test statistics.
All rights reserved.