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1
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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ูŠูˆู… ุงู† ุดุงุก ุงู„ู„ู‡ ู‡ู†ุจุฏุฃ ุฃูˆู„
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ู„ู‚ุงู‡ ุจุนุฏ ุฑู…ุถุงู† ูุฏุงุฆู…ุง ุฃูˆู„ ู„ู‚ุงู‡ ุจูŠูƒูˆู† ุฎููŠู ูู‡ู†ุงุฎุฏ
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ููŠ ู…ูˆุถูˆุน ุณู‡ู„ ุงู„ู„ูŠ ู‡ูˆ ุงู„ two population proportions
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ุจุชุนุฑู ุดุจุทุฑ 9 ูˆุดุจุทุฑ 10 ุญูƒูŠู†ุง ุนู† ุดุบู„ุชูŠู† ู…ู‡ู…ุฉ ุงู„ู„ูŠ ู‡ูŠ
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ุงู„ testing about population parameters ุฃุฎุฏู†ุง ุงู„
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population mean one population meanูˆุฃุฎุฏู†ุง one
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population proportion ุฃุฎุฏู†ุง ููŠ ุดุฑุทุฑ ุชุณุนุฉ ุงู„ู„ูŠ
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ุนู…ู„ู†ุงู‡ุง ููŠ ุนุดุฑุฉ ุนู…ู„ู†ุง extension ู„ุดุฑุทุฑ ุชุณุนุฉ ูุฃุฎุฏู†ุง
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two population means ูˆุฃุฎุฏู†ุงู‡ู… ุญุงู„ุชูŠู† ุชุฐูƒุฑูˆุง ุงู„ู„ูŠ
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ู‡ูˆ ุงู„ independent ูˆ ุงู„ related ูˆ ู‡ุฏูˆู„ ุงุชู†ูŠู† ููŠ
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population means ุจูŠู„ุฒู… ูŠูƒูˆู† ุนู†ุฏู‰ ู†ูˆุน ุงู„ุจูŠุงู†ุงุช
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quantitative data ุจูŠุงู†ุงุช ูƒู…ูŠุฉ ู„ูˆ ูƒุงู†ุช qualitative
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ูŠุนู†ูŠ ุฃุณุฑุฉ ุฒูŠ yes ูˆ no ุจุณุชุฎุฏู…ุงู„ู€ proportions ุณูˆุงุก
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ูƒุงู†ุช one population of proportions ุฒูŠ ุงู„ู„ูŠ ุฃุฎุฏู†ุงู‡ุง
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ููŠ ุดุฑุทุฉ ุชุณุนุฉ ุฃูˆ two population of proportions ุงุญู†ุง
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ู‡ู†ุงุฎุฏู‡ ุงู„ุขู† ูุงู„ุฌูˆู„
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test a hypothesis or form confidence interval
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usually will skip confidence interval as we
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mentioned before so we are going just to test a
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hypothesis for the difference betweentwo
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population proportions ุฒูŠ ู…ุง ุญูƒูŠู†ุง for the
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difference between two population means ู‡ู†ุง ุงุญู†ุง
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ู†ุญูƒูŠ ุนู„ู‰ ู†ูุณ ุงู„ู…ูˆุถูˆุน ุงู„ู„ูŠ ู‡ูˆ ุงู„ two population
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proportions ูˆุงุถุญ
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ูุงู„ two population proportions ุญูƒูŠู†ุง ุงู„ by one
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represents the population proportion for
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population number oneุงู„ุชุงู†ูŠุฉ ุงู„ู€ bi2 ู…ู…ูŠุฒุฉ ุจุงู„ู†ุณุจุฉ
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ู„ู„ุฌู…ู‡ูˆุฑ ุงู„ุซุงู†ูŠ ู„ู„ุฌู…ู‡ูˆุฑ ูˆู†ุญู† ู…ู‡ุชู…ูŠู† ุจุชุฌุงุฑุจ ุงู„ูุฑู‚
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ุจูŠู† ู‡ุฐู‡ ุงู„ุงุซู†ูŠู† ุงู„ุฌู…ู‡ูˆุฑ ุงู„ุฃุณุงู…ูŠู‡ ู‡ูŠ ู†ูุณู‡ุง ุงู„ุชูŠ ู‚ุฏ
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ุชุญุฏุซู†ุง ุนู†ู‡ุง ู‚ุจู„ู‡ุง ุงู„ุฃุณุงู…ูŠู‡ ู‡ูŠ N times Y is at
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least 5ูˆNร—1-Pi ู‡ูˆ ุฃู‚ู„ ู…ู† 5 ูˆู‡ุฐุง ู„ู„ู…ุฌุชู…ุน ุงู„ุฃูˆู„ุŒ
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00:02:44,150 --> 00:02:49,570
ูˆู…ุซู„ู‹ุง ู„ู„ู…ุฌุชู…ุน ุงู„ุซุงู†ูŠุŒ ูุงู„ูˆุงุถุญ ุฃู† Nร—Pi1 ู‡ูˆ ุฃู‚ู„ ู…ู†
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5 ูˆNร—1-Pi1 ู‡ูˆ ุฃูŠุถู‹ุง ุฃู‚ู„ ู…ู† 5ุŒ ู‡ุฐุง ู„ุดุฎุต ู†ูุณู‡ ุงู„ุฐูŠ
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ูุนู„ู†ุงู‡ ููŠ ุงู„ุญู„ู‚ุฉ 9ูˆู„ูƒู† ู‡ู†ุง ู„ุฏูŠู†ุง ุงุซุงุฑูŠู† ุงุนู†ูŠ ู„ุฏูŠู†ุง
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00:03:04,250 --> 00:03:07,530
ุงุซุงุฑูŠู† ู…ุฌู…ูˆุนุงุช ู„ุฐุง ู†ุฎุชุงุฑ ุงุซุงุฑูŠู† ู…ุฌู…ูˆุนุงุช ุนุดูˆุงุฆูŠุฉ
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00:03:07,530 --> 00:03:12,950
ู„ุฐุง ู„ุฏูŠู†ุง ุงุซุงุฑูŠู† ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช ููŠ ูˆุงุญุฏุฉ ูˆุงู†ุชูˆุง
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00:03:12,950 --> 00:03:15,930
ุงุฐุง ุงู†ุชูˆุง ู…ุฌู…ูˆุนุงุช ุจูŠ ุงุชูˆุง ูŠุฌุจ ุฃู† ูŠูƒูˆู† ุนู„ู‰ ุงู„ุฃู‚ู„ 5
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ุงู†ุชูˆุง ู…ุฌู…ูˆุนุงุช ูˆุงุญุฏุฉ ุงู‚ู„ ุจูŠ ุงุชูˆุง ูŠุฌุจ ุฃู† ูŠูƒูˆู† ุนู„ู‰
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ุงู„ุฃู‚ู„ 5 ูˆุงู†ุชูˆุง ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช ุงุชูˆุง ูŠุฌุจ ุฃู†
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00:03:22,370 --> 00:03:24,070
ูŠูƒูˆู† ุนู„ู‰ ุงู„ุฃู‚ู„ 5 ูˆุงู†ุชูˆุง ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช
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ุงุชูˆุง ูŠุฌุจ ุฃู† ูŠูƒูˆู† ุนู„ู‰ ุงู„ุฃู‚ู„ 5 ูˆุงู†ุชูˆุง ู…ุฌู…ูˆุนุงุช
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ู…ุฌู…ูˆุนุงุช ู…ุฌู…ูˆุนุงุช ุงุชูˆุง ูŠุฌุจ ุฃู† ูŠูƒูˆู† ุนู„ู‰ ุงู„ุฃู‚ุฃูŠุถู‹ุง
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ู…ุซู„ู‹ุง ูƒู…ุง ุฐูƒุฑู†ุงู‡ ู‚ุจู„ ุฐู„ูƒ ู…ู‚ุงุฑู†ุฉ ุงู„ู†ู‚ุทุฉ ู„ู„ู…ู‚ุงุฑู†ุฉ
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ุฅุฐุง ูƒุงู† ู„ุฏูŠู†ุง ู…ู‚ุงุฑู†ุฉ ู…ุฌุชู…ุน ูˆุงุญุฏุฉ ูู…ู‚ุงุฑู†ุฉ ุงู„ู†ู‚ุทุฉ
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ู…ุฌุฑุฏ P ุฅุฐุง ูƒู†ุง ู…ู‡ุชู…ูŠู† ุจุงู„ู…ู‚ุงุฑู†ุฉ ุจูŠู† ู…ู‚ุงุฑู†ุฉ ู…ุฌุชู…ุนูŠู†
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ุซู… ู…ู‚ุงุฑู†ุฉ ุงู„ู†ู‚ุทุฉ ู„ู„ู…ู‚ุงุฑู†ุฉ B1-B2 ูB1-B2 ู‡ูŠ ู…ู‚ุงุฑู†ุฉ
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ุงู„ู†ู‚ุทุฉ ู„ู„ู…ู‚ุงุฑู†ุฉ
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00:03:58,300 --> 00:04:09,160
P1-P2ูˆุฅุฐุง ูƒู†ุง ู†ุชูƒู„ู… ุนู† P2-P1 ู…ุงู‡ูˆ ุงู„ูˆุถุน ู„ู€ P2-P1
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P2-P1ุŒ ูP2 ูู‚ุท ุนูƒุณ P2-P1 ูP2-P1 ู‡ูˆ ุงู„ูˆุถุน ู„ู„ู…ุฎุชู„ู
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P2-P1
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ููŠ ุงู„ุญูŠูˆุงู†ุงุช ุงู„ุงู†ูุนุงู„ูŠุฉุŒ ูƒู…ุง ุฐูƒุฑู†ุงุŒ ู„ู„ู…ุฎุชู„ู ุจูŠู†
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ุงุชุฌุงุฑุชูŠู† ูŠุนู†ูŠ ุฃู† ููŠ ุงู„ุญูŠูˆุงู†ุงุช ุงู„ุงู†ูุนุงู„ูŠุฉุŒ ู„ุง ูŠูˆุฌุฏ
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00:04:36,270 --> 00:04:41,790
ุงุฎุชู„ุงู ุจูŠู† ุฃุณุงุณูŠุงุช ุงู„ู‡ุฏุงูŠุง. ุงู„ุขู†ุŒ ู†ุญู† ู…ู‡ุชู…ูˆู†
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ุจุงู„ุงุฎุชู„ุงู ุจูŠู† ุงุชุฌุงุฑุชูŠู† ูˆู…ุฌู…ูˆุนุงุช. ู„ุฐู„ูƒ, y1-y2 ู‡ูˆ 0.
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ุฃุนู†ูŠ, ุงู„ุงุฎุชู„ุงู ุจูŠู† ู‡ุฐูŠู† ู‡ูˆ 0. ุฃูˆ ู…ุซู„ู‹ุง, ู‡ุฐุง ูŠู…ูƒู†
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00:04:52,270 --> 00:04:58,360
ุฃู† ูŠูƒูˆู† ูƒุชุงุจ ูƒู‡ุฐุง ูŠุนู†ูŠ ุฃู†ู‡ ู„ูŠุณ ู‡ู†ุงูƒ ุงุฎุชู„ุงู ู…ู‡ู… ุจูŠู†
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ู…ุฌู…ูˆุนุงุช ุงู„ู†ุงุณ ู…ู† ู†ุณุจุฉ ูˆุงุญุฏุฉ ูˆู†ุณุจุฉ ุงุซู†ู‰. ุงู„ุขู†ุŒ
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ู„ู„ุญูŠุจูˆุชุณูŠุฒ ุงู„ุฅู†ุชุฑู†ุช ุฃูˆ ุงู„ุญูŠุจูˆุชุณูŠุฒ ุงู„ุฅู†ุชุฑู†ุช ูƒู…ุง
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00:05:08,540 --> 00:05:14,700
ุฐูƒุฑุช ู‚ุจู„ู‡ุงุŒ ู‡ู†ุงูƒ ุซู„ุงุซุฉ ู…ุฌู…ูˆุนุงุชุŒ ุฅู…ุง ู…ุฎุชุงุฑูŠู† ุฃูˆ
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ู…ุฎุชุงุฑูŠู†ุŒ ู‡ุฐุง ูŠุนู†ูŠ ุฃู† ู†ุณุจุฉ ูˆุงุญุฏุฉ ุฃู‚ู„ ู…ู† ู†ุณุจุฉ ุงุซู†ู‰
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00:05:19,340 --> 00:05:23,260
ู„ูŠุณุช ุฃุฒุฑุนุŒ ู‡ุฐุง ูŠุนู†ูŠ ุฃู† ู†ุณุจุฉ ูˆุงุญุฏุฉ ู„ูŠุณุช ู†ุณุจุฉ ุงุซู†ู‰.
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ู‡ุฐุง ูŠุณู…ู‰ ุงุฎุชุจุงุฑ ู…ู† ุงู„ุทุฑููŠู† two-sided ุงูˆ two-tailed
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ุนู„ู‰ ุงู„ุฌุงู†ุจ ุงู„ุขุฎุฑุŒ ู‡ู†ุงูƒ ุงุชูุงู‚ุงุช ู…ุฎุชู„ูุฉ ุงุฎุฑู‰ ูŠุณู…ู‰
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upper tail ูˆlower tail ุงู„ู€ upper tail ู‡ูˆ ุจูŠ ูˆุงู†
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ุงู‚ู„ ู…ู† ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ
66
00:05:47,880 --> 00:05:52,340
ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚
67
00:05:52,340 --> 00:05:53,080
ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ
68
00:05:53,080 --> 00:05:55,060
ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชูุงู‚ ุจูŠ ุงุชู‡ุฐุง ูŠุณู…ู‰ ุชุฌุงุฑุจ
69
00:05:55,060 --> 00:05:59,600
ุงู„ุฃุนู„ู‰ุŒ ูˆุงุถุญ ุชุฌุงุฑุจ ุงู„ุฃุนู„ู‰ ู„ุฐู„ูƒ ู…ูŠูˆ ูˆุงู† ู…ุงู†ูˆุณ ู…ูŠูˆ
70
00:05:59,600 --> 00:06:06,920
ุงุชูˆ ู…ูุชูˆุญุŒ ูˆู…ุซู„ู‹ุง ู„ูƒู„ ุชุฌุงุฑุจ ุฃุณูู„ ูŠุนู†ูŠ ุจุงูŠ ูˆุงู†
71
00:06:06,920 --> 00:06:10,760
ู…ุงู†ูˆุณ ุจุงูŠ ุงุชูˆ ู…ูุชูˆุญุŒ ูˆู‡ุฐุง ูŠุนู†ูŠ ุจุงูŠ ูˆุงู† ุฃุตุบุฑ ู…ู† ุจุงูŠ
72
00:06:10,760 --> 00:06:16,260
ุงุชูˆุŒ ุงู„ุขู† ุชุญุช ุงู„hypothesis ูุฅุฐุง ูƒุงู†ุช ุงู„hypothesis
73
00:06:16,260 --> 00:06:21,340
ุตุญูŠุญุฉุŒููŠ ู†ุธุฑุฉ ุงู„ู€ NULL ู†ุญู† ู†ุนุชู…ุฏ ุฃู† ุงู„ู€ NULL ุตุญูŠุญ
74
00:06:21,340 --> 00:06:22,960
ู„ุฐู„ูƒ ู†ุนุชู…ุฏ ุฃู† ู†ุญู† ู†ุญู† ู†ุนุชู…ุฏ ุฃู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู†
75
00:06:22,960 --> 00:06:25,640
ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู†
76
00:06:25,640 --> 00:06:28,480
ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู†
77
00:06:28,480 --> 00:06:28,720
ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู†
78
00:06:28,720 --> 00:06:45,680
ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู† ู†ุญู†
79
00:06:45,680 --> 00:06:51,750
ู†ุงู„ู†ุณุจุฉ ุงู„ู…ุฌุงู…ุนุฉ ู„ู„ู…ุฌุชู…ุน ูƒูƒู„ ู†ุณู…ูŠู‡ุง ุจูˆู„ุช ุฃุณุชู…ุชุน
80
00:06:51,750 --> 00:06:59,270
for the overall proportion ุงู„ู‚ุงู†ูˆู†
81
00:06:59,270 --> 00:07:06,090
ุจูŠ ุฏุงุดุช ุจูŠ ุฏุงุดุช equals x1 plus x2 over n1 plus n2
82
00:07:06,090 --> 00:07:11,430
for example suppose I am teaching two classes of
83
00:07:11,430 --> 00:07:15,330
statistics males and females
84
00:07:18,360 --> 00:07:22,100
and suppose the number of males is seventy number
85
00:07:22,100 --> 00:07:28,220
of females is hundred and my question is for each
86
00:07:28,220 --> 00:07:32,640
class do you prefer this courseุŸ ุจุชูุถู„ูˆุง ุงู„ course
87
00:07:32,640 --> 00:07:37,500
ุงู„ู„ูŠ ุญู†ุง ู†ุงุฎุฏู‡ุŒ ู†ูุชุฑุถ for males twenty just prefer
88
00:07:37,500 --> 00:07:42,520
.. ุงู„ุทุจูŠุนูŠ ู…ุด ูƒุฏู‡ุŒ ุงู„ู„ูŠ ุจูุถู„ ู†ูุชุฑุถ ุงู„ู„ูŠ ุญุตู„ุช ุนุดุฑูŠู†
89
00:07:42,520 --> 00:07:48,370
ูˆุงุญุฏ ูˆ ุงู„ุทุงู„ุจุงุช ู†ูุชุฑุถ ุงู„ู„ูŠ ุจูุถู„ ุงุฑุจุนูŠู† ูˆุงุญุฏู†ูุชุฑุถ
90
00:07:48,370 --> 00:07:53,050
ุญุงุฌุฉ ุฒู‰ ูƒุฏู‡ ุงู„ู„ู‰ ู„ูˆ ุนุงูŠุฒ ุงุทู„ุน ุงู„ average ู„ู„
91
00:07:53,050 --> 00:07:57,390
proportion ู„ two classes ู…ุน ุจุนุถ together ุจูŠู†ูุนุด
92
00:07:57,390 --> 00:08:01,250
ุงุญูƒูŠ ุงู„ average ุนุจุงุฑุฉ ุนู† ู…ุฌู…ูˆุนุฉ ุฏูˆู„ ุนู„ู‰ ุงุชู†ูŠู†
93
00:08:01,250 --> 00:08:04,570
ุจูŠู†ูุนุด ุงุญูƒูŠ ุงุฑุจุนูŠู† ุฒูŠ ุงุชูŠู† ุนู„ู‰ ุงุชูŠู† ุชุทู„ุน ุชู„ุงุชูŠู† ููŠ
94
00:08:04,570 --> 00:08:10,370
ุงู„ู…ูŠู„ูŠุงุŒ ู…ุธุจูˆุทุŸ ู„ุฃู†ู‡ ู…ุด ุฒูŠ ุจุนุถุŒ ุงู„ samples ู…ุด ุฒูŠ
95
00:08:10,370 --> 00:08:16,300
ุจุนุถุŒ ูŠุนู†ูŠ ุจูŠู†ูุนุด ุงุทู„ุน ุฎู„ูŠู†ูŠ ุงุญูƒูŠู‡ุฐุง 35 ุจุณ ุงุบูŠุฑู‡
96
00:08:16,300 --> 00:08:25,520
ุนุดุงู† ู†ุนุฑู ู†ุญุณุจ ุฎู„ู‘ูŠู‡ุง 35 ูƒูˆูŠุณ ู…ุงู†ูุนุด ุงุญูƒูŠ ุทุงู„ุน ุงู„
97
00:08:25,520 --> 00:08:32,900
B1 ุทูŠุจ B1 ุดูˆ ุณุงูˆูŠุŸ X1 over N1 ู…ุด ู‡ูŠุŸ ุงู„ู„ูŠ 50% ูˆ B2
98
00:08:32,900 --> 00:08:42,580
ุงู„ู„ูŠ 4 ุนู„ู‰ 100 ูŠุนู†ูŠ 0.4 ู…ุงู†ูุนุด ุงุญุณุจ ุงู† B1 ู„ู„ูƒู„ุงู„ู€
99
00:08:42,580 --> 00:08:47,880
B' ู„ู„ูƒู„ ู…ุฌู…ูˆุน ุงู„ุงุชู†ูŠู† ู‡ุฏูˆู„ ุนู„ู‰ ุงุชู†ูŠู† ูŠุนู†ูŠ ู…ุงู†ูุนุด
100
00:08:47,880 --> 00:08:51,200
ุงุญูƒูŠ ุงู† ุงู„ู€ B' ู†ุณุจุฉ ุงู„ุทู„ุจุฉ ุงู„ู„ูŠ ุจูŠูุถู„ ุงู„
101
00:08:51,200 --> 00:08:56,860
statistics course ุจุชุณุงูˆูŠ ุงุฑุจุนูŠู† ููŠ ุงู„ู…ูŠุฉ ุฒุงุฆุฏ ุงู„
102
00:08:56,860 --> 00:09:00,800
fifty ุนู„ู‰ ุงุชู†ูŠู† ุนู„ู‰ point four five ู‡ุฐุง ุงู„ูƒู„ุงู… ู‡ูŠูƒ
103
00:09:00,800 --> 00:09:06,720
ู…ุด ุตุญูŠุญ ู‡ู†ุนุฑู ููŠ ุญุงู„ุฉ ู…ุนูŠู†ุฉ ู…ู…ูƒู† ูŠูƒูˆู† ุตุญูŠุญ ุทุจ ุงูŠุด
104
00:09:06,720 --> 00:09:10,250
ุงู„ bold estimate ุงู„ู„ูŠ ู‡ู…ู„ู„ู€ overall proportion
105
00:09:10,250 --> 00:09:15,910
ูŠุนุทุงู†ู‰ ูŠุนู†ู‰ ุงู„ู€ B' ุนุจุงุฑุฉ ุนู† ุงูŠุด number of students
106
00:09:15,910 --> 00:09:20,890
who prefer this course either males and females
107
00:09:20,890 --> 00:09:24,650
divided by number of males plus number of females
108
00:09:24,650 --> 00:09:32,550
so for this specific example there are 35 males
109
00:09:32,550 --> 00:09:39,930
and 40 females like this courseSo 35 plus 40
110
00:09:39,930 --> 00:09:45,150
divided by N1 plus N2 N1 is seventy plus a hundred
111
00:09:45,150 --> 00:09:51,650
ุจุทู„ุน ุฎู…ุณุฉ ูˆ ุณุจุนูŠู† ุนู„ู‰ ู…ูŠุฉ ูˆ ุนุดุฑุฉ ู‡ุฐุง
112
00:09:51,650 --> 00:09:54,050
ุงู„ exact proportion ุฎู…ุณุฉ ูˆ ุณุจุนูŠู† ุนู„ู‰ ู…ูŠุฉ ูˆ ุนุดุฑุฉ
113
00:09:54,050 --> 00:10:02,430
ุนู„ู‰ ู…ูŠุฉ ูˆ ุณุจุนูŠู† ุชุทู„ุน ุงุฑุจุน ู…ู† ุนุดุฑุฉ ุชุทู„ุน ุงุฑุจุน ู…ู†
114
00:10:02,430 --> 00:10:07,070
ุนุดุฑุฉ ุจุงู„ุธุจุท ูˆู„ุง ุจุฏู‡ุง ุดู…ูŠุฉ ุทูŠุจ ูˆ ุงู„ุงุฑุจุน ู…ู†ุฒู„ ุงุฑุจุน
115
00:10:07,070 --> 00:10:13,420
ู…ู† ุนุดุฑุฉุจุทู„ุน 44 ู„ุญุธุฉ
116
00:10:13,420 --> 00:10:16,440
ุงู„ู„ูŠ ู‚ูˆู„ู‡ุง ุงุด ุทู„ุนุช 45 ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
117
00:10:16,440 --> 00:10:17,060
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
118
00:10:17,060 --> 00:10:17,340
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
119
00:10:17,340 --> 00:10:17,980
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
120
00:10:17,980 --> 00:10:19,560
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
121
00:10:19,560 --> 00:10:19,960
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
122
00:10:19,960 --> 00:10:29,960
ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู† ุงุชู†ูŠู†
123
00:10:29,960 --> 00:10:32,460
ุงุชู†ูŠู†
124
00:10:35,930 --> 00:10:39,870
ุงู„ู€ 70 ู…ู„ูŠูˆู† ูˆุงู„ู€ 70 ู…ู„ูŠูˆู† ู‡ู†ุง ูˆุฌู…ุงุนุชู‡ู… ุจูŠู†ูุน ุฎู„ุงุต
125
00:10:39,870 --> 00:10:42,830
ู‡ุชุจู‚ูˆุง ู†ูุณ ุงู„ุจุนุถ ู„ูƒู† ู„ูˆ ุนู† ุงู„ different sample
126
00:10:42,830 --> 00:10:46,850
sizes the bold estimate for the overall proportion
127
00:10:46,850 --> 00:10:50,430
is given by this equation just some of the
128
00:10:50,430 --> 00:10:54,950
outcomes of interest ุฃู†ุง ู…ู‡ุชู… ุจุงู„ุทู„ุจ ุงู„ู„ูŠ ุจูŠ ..
129
00:10:54,950 --> 00:10:58,210
ุงู„ู„ูŠ ุจูŠุญุจ class ุงู„ statistics ุนู„ู‰ ุงู„ total sample
130
00:10:58,210 --> 00:11:01,690
size ุฎู„ุงุต ู‡ุฐุง ุงู„ู‚ุงู†ูˆู† ุงู„ุฌูŠุฏ ุจุงู„ู†ุณุจุงู„ูŠ ู„ู†ุง ู†ุณู…ูŠู‡ ุงู„
131
00:11:01,690 --> 00:11:05,960
.. ุงู„ bold estimate ุฒูŠ ู…ุง ุฃุฎุฏู†ุง ู…ูŠู† ู‚ุจู„ ู‡ูŠูƒุงู„ู€
132
00:11:05,960 --> 00:11:08,800
pool variance ุชุฐูƒุฑ ู…ุง ูƒุงู†ุช ุงู„ู€ two samplesุŸ ุทู„ุนู†ุง
133
00:11:08,800 --> 00:11:14,420
ุงู„ pool variance ุงู„ู‚ุงู†ูˆู† ุชุจุนู‡ุŸ ู‡ุฐุง ู†ูุณ ุงู„ุดูŠุก ุงู„ุงู†
134
00:11:14,420 --> 00:11:23,520
ุงู„ Z statistic ุงู„ู„ูŠ ุนู†ุฏู†ุง ุงู„ Z star ุดูƒู„ู‡ ู…ุด ุญู„ูˆ
135
00:11:23,520 --> 00:11:30,120
ุงู„ุดูŠุก ุดูƒู„ ุงู„ู‚ุงู†ูˆู† ู‡ุฐุง ุงู„ู‚ุงู†ูˆู† ุจูŠุดุจู‡ ุจุงู„ุธุจุท ุงู„ Z
136
00:11:30,120 --> 00:11:35,740
score ุงู„ู„ูŠ ุฃุฎุฏู‡ุง ุดุฑุจุฑ 3ุงู„ุงู† ุฏุฑุฌุฉ ุนู„ู‰ ุดุทุฑ 3 ุฎุงู„ุต ุงู„
137
00:11:35,740 --> 00:11:40,220
Z ูƒุงู† ุนุจุงุฑุฉ ุนู† ุงูŠุด ุงู„ X minus ุงู„ mean ุชุจุนู‡ ู…ุด ุงู„
138
00:11:40,220 --> 00:11:43,460
mean ุชุจุนู‡ ุนู„ู‰ ุงู„ standard deviation ุงู„ู„ูŠ ู‡ูˆ ู…ุธู‡ุฑ
139
00:11:43,460 --> 00:11:49,000
ู‡ุฐุง ุงู„ุฃุณุงุณ ุงู„ู„ูŠ ู‡ูˆ ุงู„ X ู†ู‚ุต X ุจุงุฑ ุนู„ู‰ S ู…ุด ู‡ูŠูƒ
140
00:11:49,000 --> 00:11:54,660
ุฎุฏู†ุง ุดุทุฑ 3 ุงู„ู„ูŠ ุจุญูƒูŠ ุนู†ู‡ ุงู„ูŠูˆู… ู‡ูˆ ู†ูุณู‡ ุจุณ ู…ุนุงู‡
141
00:11:54,660 --> 00:11:58,140
ุงุฎุชู„ุงู ุงูŠุด ุงู„ู„ูŠ ุงู†ุง ุนุงูŠุฒู‡ ุงู†ุง ุนุงูŠุฒ ุงู„ Z stat ู„ู…ูŠู†
142
00:12:00,760 --> 00:12:06,100
ุงู„ู€ difference ุงู„ู„ูŠ ู‡ูˆ P1-P2ุŒ ู‡ุฐุง ุงู„ู€ X ุชุจุนุชูŠ
143
00:12:06,100 --> 00:12:10,580
ูˆุญุงูˆู„ูˆุง ุฃู† ุชูƒูˆู†ูˆุง ุชุจุนุฏ X ู†ู‚ุต 100 ุนู„ู‰ ุงู„ู€ SigmaุŒ ู…ุด
144
00:12:10,580 --> 00:12:16,720
ู‡ูŠุŸ ู†ู‚ุตุŒ ุทูŠุจุŒ ุฅูŠุด ุงู„ู€ mean ู„ู‡ ุฏูˆู„ ู…ู† ุงู„ุฃุตู„ P1-P2ุŒ
145
00:12:16,720 --> 00:12:21,740
ู‡ุฐุง ุงู„ุฃุตู„ ุชุจุนู†ุง ุงู„ู„ูŠ
146
00:12:21,740 --> 00:12:25,840
ุชุญุช ุงู„ู€ standard deviation ุงู„ู€ standard deviation
147
00:12:25,840 --> 00:12:37,340
ู‡ูŠ ุงู„ู‚ุฑู† ุชุจุนู‡ P-1-P-HุฃูŠ ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ
148
00:12:37,340 --> 00:12:41,640
ุฏุงุด
149
00:12:41,640 --> 00:12:43,140
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด
150
00:12:43,140 --> 00:12:43,180
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด
151
00:12:43,180 --> 00:12:43,260
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด
152
00:12:43,260 --> 00:12:43,300
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด
153
00:12:43,300 --> 00:12:43,720
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด
154
00:12:43,720 --> 00:12:59,620
ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ ุฏุงุด ุจูŠ
155
00:13:00,030 --> 00:13:04,530
ุงู„ู„ูŠ ุฃุฎุฏู†ุงู‡ุง ููŠ chapter 9 .. ุฃู‡ chapter 10 ูƒุงู†ุช X1
156
00:13:04,530 --> 00:13:08,590
bar minus X2 bar ู…ุด ู‡ูŠูƒ ุงู„ difference between two
157
00:13:08,590 --> 00:13:14,970
population proportions minus ู…ูŠู† ุงู„ุฃุตู„ ุชุจุนู‡ู… ู…ุธุจูˆุท
158
00:13:14,970 --> 00:13:20,170
ุงู„ู„ูŠ ุฃุฎุฏู‡ุง ู‡ู†ุงูƒ ุญุงู„ุชูŠู† ู„ู…ุง ู†ูƒูˆู† ุงู„ variances are
159
00:13:20,170 --> 00:13:23,490
unknown but we assume they are equal ุฃุฎุฏู†ุง ุงู„ bold
160
00:13:23,490 --> 00:13:26,970
ุชุจุนู‡ู… ู…ุด ู‡ูŠูƒ ู‡ุฐุง ุงู„ bold ู‡ูˆ ู‡ุฐุง ุงู„ bold ุงู„ู„ูŠ ู‡ู†ุง
161
00:13:26,970 --> 00:13:29,410
ู…ุธุจูˆุท
162
00:13:30,020 --> 00:13:39,040
ุงู„ู„ูŠ ู‡ูˆ bold variance ูƒุงู† SยฒB ุจุนุฏูŠู† ู†ูุณ ุงู„ .. ู„ุฃ
163
00:13:39,040 --> 00:13:42,920
ู…ุงููŠุด ุทุฑู‚ ุจุงู„ุงุชู†ูŠู† ุงุฎุชู„ู ุจุณ ุงู†ุง ุจุชูƒู„ู… ู‡ู†ุงูƒ ุนู„ู‰
164
00:13:42,920 --> 00:13:48,360
means ู‡ู†ุง proportions ูุงู„ู…ู‚ุงู… ู‡ูŠุฎุชู„ู ู‡ูŠูƒูˆู† ุงู„ bold
165
00:13:48,360 --> 00:13:52,260
variance ู‡ูŠ ุงู„ู„ูŠ ู‡ูŠูƒูˆู† ุงู„ bold S proportion ุจP'
166
00:13:52,620 --> 00:13:58,720
times 1-P'ุฎู„ุงุต ุทุจุนุง ุงู„ b' ู‡ูŠ ู‚ุงู†ูˆู†ู‡ ูˆ ู‡ูŠ b1 ูˆ ู‡ูŠ
167
00:13:58,720 --> 00:14:04,380
b2 ุงู†ุง ููŠ ุงู„ุงู…ุชุญุงู†ุงุช ุจุนุทูŠูƒ ุงู„ุตูุญู‡ ู‡ุฐู‡ ุจุงู„ูƒุงู…ู„
168
00:14:04,380 --> 00:14:09,920
ู‚ุงู†ูˆู† ู‡ุฐุง ูˆ b' ูˆ b1 ูˆ b2 ุฎู„ุงุต ูŠุนู†ูŠ ููŠ ุงู„ุงู…ุชุญุงู†ุงุช
169
00:14:09,920 --> 00:14:13,600
ุชุจุนู‡ู… ุงู„ุชู„ุงุชุฉ ุงู† ุดุงุก ุงู„ู„ู‡ ุจุนุทูŠูƒ formula sheet ุงู„ู‰
170
00:14:13,600 --> 00:14:14,780
chapter 9 ูˆ chapter 10
171
00:14:21,690 --> 00:14:25,130
ู‡ุฏูˆู„ ุงู„ู„ูŠ ุญูƒูŠุช ุนู„ูŠู‡ู… ุงู„ lower tail ูˆ upper tail ูˆ
172
00:14:25,130 --> 00:14:30,650
two-tailed test ุฎู„ุงุต ุดูˆู ุงู„ุจุงุนุฏู‡ุง ุงู„ุงู† ุงู„ู…ู†ุทู‚ุฉ
173
00:14:30,650 --> 00:14:35,510
ุงู„ู„ูŠ ู‡ู†ุง ุจุชุญุฏุฏ ุงู„ rejection regions ู„ูˆ ูƒู†ุช ุนู†ุฏู‰
174
00:14:35,510 --> 00:14:38,350
two-tailed test ู„ูˆ ูƒู†ุช ุนู†ุฏู‰ two rejection regions
175
00:14:38,350 --> 00:14:42,270
ุฅุฐุง ูƒุงู† ุนู†ุฏู‰ level of significance Alpha Alpha
176
00:14:42,270 --> 00:14:45,490
ุชุชุฌุณู… Alpha over two to the right Alpha over two
177
00:14:45,490 --> 00:14:49,890
to the left ู‡ูŠูƒ ู…ุฌู…ูˆุญ ู…ู† Alphaูˆู†ู†ู‚ู„ ุฅุฐุง ู‚ูŠู…ุฉ
178
00:14:49,890 --> 00:14:53,430
ุงู„ู…ู‚ุงุฑู†ุฉ ุชุชุฎู„ุต ู…ู† ู…ู‚ุงุฑู†ุฉ ุงู„ู€ Rejection Region ู…ุน
179
00:14:53,430 --> 00:14:59,250
ูƒุฏู‡ ุงู„ู€ Z ู‡ู†ุง ูŠุนู†ูŠ Z ุฃูƒุชุฑ ู…ู† Z ุฃู„ู ุฃูƒุชุฑ ู…ู† 2 ุฃูˆ ููŠ
180
00:14:59,250 --> 00:15:02,750
ุงู„ู…ู†ุทู‚ุฉ ุงู„ุชุงู†ูŠุฉ ุฃู‚ู„ ู…ู† ู†ู‚ู„ Z ุฃู„ู ุฃูƒุชุฑ ู…ู† 2 ุงู„ูƒู„ุงู…
181
00:15:02,750 --> 00:15:05,850
ุงู„ู„ูŠ ุฃุฎุฏู†ุงู‡ ููŠ ุงู„ุฃูˆู„ ููŠ ู†ู‚ุทุฉ ุชุณุนุฉ ู…ูƒุฑุฑุŒ ู‡ุฐุง ุงู„ู€
182
00:15:05,850 --> 00:15:10,150
slide ู‡ูˆ ู†ูุณู‡ุŒ ุจุณ ู‡ู†ุง ุนู„ู‰ ุงู„ู€ Proportions ุงู„ู€
183
00:15:10,150 --> 00:15:13,210
Upper tail ูŠูƒูˆู† ุนู†ุฏูŠ just one rejection region to
184
00:15:13,210 --> 00:15:16,530
the right side ูˆู†ู†ู‚ู„ ุฅุฐุง ู‚ูŠู…ุฉ ุงู„ู…ู‚ุงุฑู†ุฉ ุชุชุฎู„ุต ู…ู†
185
00:15:16,530 --> 00:15:22,240
ู…ู‚ุงุฑู†ุฉู‡ุฐุง ูŠุนู†ูŠ ุฃู† Z-Stat ุฃูƒุจุฑ ู…ู† Z-Alpha ูˆุฅุฐุง ูƒู†ุง
186
00:15:22,240 --> 00:15:26,280
ู†ุชุญุฏุซ ุนู† ุชู„ุชุงุช ุฃุณูู„ุŒ ุฃุนู†ูŠ ุฅู„ู‰ ุงู„ุฌู‡ุฉ ุงู„ูŠุณุงุฑุฉุŒ ุซู…
187
00:15:26,280 --> 00:15:29,880
ู†ู†ุฌุญ ุฅุฐุง ูƒุงู†ุช ุชุงุฑูŠุฎ Z ูŠุณู‚ุท ููŠ ู‡ุฐู‡ ุงู„ู…ู†ุทู‚ุฉ
188
00:15:29,880 --> 00:15:34,660
ุงู„ุชู†ู‚ู„ูŠุฉุŒ ูˆู‡ุฐุง ูŠุนู†ูŠ ุฃู† Z-Stat ุฃู‚ู„ ู…ู† ู†ู‚ู„ Z-AlphaุŒ
189
00:15:34,660 --> 00:15:43,860
ูˆุงู†ุชุจู‡ ุฅู„ู‰ ู‡ุฐุง ุงู„ู‚ูŠู…ุฉุฃูˆ ูŠู‚ู„ ู‚ูŠู…ุฉ ุงู„ู€ Alpha ูู‚ุท ู…ุน
190
00:15:43,860 --> 00:15:48,800
ุตูŠู†ุฉ ุนูƒุณูŠุฉ ู‡ุฐู‡ ู†ูŠุฌุงุชูŠู‡ ูˆุงู„ุชุงู†ูŠ ู‡ุชูƒูˆู† positive ุฅุฐุง
191
00:15:48,800 --> 00:15:58,280
ูƒู†ุง ู†ุชูƒู„ู… ุนู† 5% Alpha 5 ูู‚ูŠู…ุชู‡ ู‡ูŠ ู†ูŠุฌุงุชูŠู‡ 1.645
192
00:15:58,280 --> 00:16:04,520
ูˆู‡ุฐุง ู‡ูˆ ู†ูุณู‡ ู‡ุฐุง
193
00:16:04,520 --> 00:16:12,710
ุตุญูŠุญ ู„ู€ Alpha5% and for two sided test the alpha
194
00:16:12,710 --> 00:16:17,250
over two ุงูŠุด ุจุชุณุงูˆูŠ ู‡ู†ุง one point nine six
195
00:16:17,250 --> 00:16:22,230
negative one nine six ู„ุงุญุธ ู†ูุณ ุงู„ู‚ูŠู… ุจุณ ุงู„ุงุฎุชู„ุงู
196
00:16:22,230 --> 00:16:25,490
ุงูŠุด positive or negative that's two if alpha
197
00:16:25,490 --> 00:16:30,970
equals five percent questions ุงูŠ ุณุคุงู„ ู„ุญุธุฉ ูƒู„ู‡
198
00:16:30,970 --> 00:16:36,030
ู…ูƒุฑุฑ ุงู†ุชูˆุง ู…ู„ูŠุชู‡ ู…ู†ู‡ ู…ุด ู‡ูŠ ุจุชุนุฑููˆุง ุงุฒุงูŠ ูƒูŠู ูˆุงุญุฏ
199
00:16:36,030 --> 00:16:41,790
ุจูŠุจู†ูŠ ุนู…ุงุฑุฉ ู‡ู†ุงุจูŠุฃุณุณ .. ุจุนุฏูŠู† ุจูŠุจุฏุฃ .. ุงู„ุฃุณุงุณ
200
00:16:41,790 --> 00:16:46,330
ุชุจุนู†ุง chapter 3 ู‡ูˆ ุฃูˆู„ chapter ูˆ chapter 6 ุจุนุฏูŠู†
201
00:16:46,330 --> 00:16:51,030
ุจุนุฏูŠู† ุจูŠุตูŠุฑ ู…ูƒุฑุฑ ู…ุธู„ูˆู… ุทุงุจู‚ ู…ูƒุฑุฑ ุชุงู†ูŠ ุฒูŠ ุงู„ุชุงู„ูŠ ุฒูŠ
202
00:16:51,030 --> 00:16:54,350
ุงู„ุฑุงุจุน ุงู„ู„ูŠ ุฌุงูŠ ุชุจู‚ู‰ ุญุฏ ู…ุง ูŠุฎู„ุต ูุจุงู„ุชุงู„ูŠ ุงู„ุฌุซุฉ
203
00:16:54,350 --> 00:16:58,910
ุตุงุฑุช ู…ูู‡ูˆู…ุฉ ุนุดุงู† ูƒุฏู‡ ู„ูˆ ุงุณุชูˆุนุจุช ุงู„ basic
204
00:16:58,910 --> 00:17:01,830
principles ุงู„ู„ูŠ ุญูƒูŠู†ุง ุนู„ูŠู‡ุง ููŠ chapter 3 ูˆ chapter
205
00:17:01,830 --> 00:17:06,880
6ู…ู…ูƒู† ุชูƒูˆู† ุจุงู„ู†ุณุจุงู„ูƒ ุณู‡ู„ุฉ ุจุนุฏูŠู† ู‡ูŠุจู‚ู‰ ุชุดุจุท ุชุณุนุฉ
206
00:17:06,880 --> 00:17:11,160
ุฃูˆู„ ูˆ ุจุนุฏูŠู† ุชุตูŠุฑ ุนู…ู„ูŠุฉ ุชุชูƒุฑุฑ ุนุดุงู† ูƒุฏู‡ ู„ุญุธุฉ ุจุดูƒู„
207
00:17:11,160 --> 00:17:15,920
ุนุงู… ุฅุฐุง ุทุงู„ุน ูุงู‡ู…ู‡ุง ุฎู„ุงุต ุชุตูŠุฑ ุงู„ุนู…ู„ูŠุฉ ุจุงู„ู†ุณุจุงู„ู‡
208
00:17:15,920 --> 00:17:26,000
ุณู‡ู„ุฉ ู†ุงุฎุฏ example ุฑูƒุฒูŠูƒ ูˆุงุญุฏุฉ ูˆุงุญุฏุฉ example ุณู‡ู„
209
00:17:32,900 --> 00:17:38,320
ุจุญูƒูŠ is there a significant difference between the
210
00:17:38,320 --> 00:17:42,000
proportion of men and the proportion of women ู„ุญุธุฉ
211
00:17:42,000 --> 00:17:49,120
ุงู„ keywords ู„ู„ู…ุซู„ุฉ ู…ู‡ู… ุฌุฏุง ุฃุนุฑูู‡ุง ู…ูุงุชูŠุญ ุงู„ุณุคุงู„ ููŠ
212
00:17:49,120 --> 00:17:54,840
ุจุนุถ ุงู„ูƒู„ู…ุงุช ุจุชุณู…ูŠู‡ุง ูƒู„ู…ุงุช ู…ูุชุงุญูŠุฉ ุงู„ keywords ู…ู†
213
00:17:54,840 --> 00:17:58,300
ุฎู„ุงู„ู‡ุง ุจุงุนุฑู ุฅูŠุด ุงู„ู‚ุงู†ูˆู† ู‡ุณุชุฎุฏู…ู‡ุง ู„ุฅู† ุฃู†ุง ููŠ
214
00:17:58,300 --> 00:18:02,330
ุงู„ุงู†ุชุญุงุฑ ุจุนุทูŠูƒ ููˆุฑู… ุงู„ุงุดูŠุงุช ุจุณ ุจุญูƒูŠุด ู„ูƒู‡ุฐุง ุงู„ู‚ุงู†ูˆู†
215
00:18:02,330 --> 00:18:05,150
ู„ุณุคุงู„ ุชู„ุงุชุฉ ูˆ ู‡ุฐุง ุงู„ู‚ุงู†ูˆู† ู„ุณุคุงู„ ุฃุฑุจุนุฉ ุจุฃุนุทูŠูƒ ุฅูŠุงู‡ู…
216
00:18:05,150 --> 00:18:11,730
ุนู„ู‰ ุจุนุถ ูˆ ุฃู†ุช ู„ุญุงู„ูƒ ุชุฎุชุงุฑ ูŠู…ูƒู† ูŠูƒูˆู† ููŠู‡ู… ุฒูŠุงุฏุฉ ุจุณ
217
00:18:11,730 --> 00:18:14,670
ู…ุงููŠุด ู†ู‚ุต ููŠู‡ู… ู‡ู… ูƒู„ู‡ู… ู…ูˆุฌูˆุฏุฉ ุจุงู„ุชุงู„ูŠ ุงู„ keywords
218
00:18:14,670 --> 00:18:20,790
ุจุชุงุนุชูƒ ู…ู† ุงู„ู…ุซู„ ู†ูุณู‡ ูˆ ุนู„ู‰ ุฅูŠุด ุจูŠุญูƒูŠุŸ ุจูŠุญูƒูŠ ุนู„ู‰
219
00:18:20,790 --> 00:18:24,450
difference ุฃูˆู„ ู…ุง ุจูŠุญูƒูŠ ุนู„ู‰ difference ู…ุน ูƒุฏู‡ ู…ุด
220
00:18:24,450 --> 00:18:29,430
one sample ุฃูƒูŠุฏ two samples ู„ูƒู† ู‡ู„ ู‡ู…ุง means ูˆ ู„ุง
221
00:18:29,430 --> 00:18:33,850
proportionsุŸ ู‡ุญูƒูŠู„ูƒ ุจุชูˆุถูŠุญูŠุนู†ูŠ specific words
222
00:18:33,850 --> 00:18:37,090
between the proportion ุจุชูƒู„ู…ู‡ุง ุนู„ู‰ proportion
223
00:18:37,090 --> 00:18:39,990
ุงู†ุชู‡ุช ุงู„ู‚ุตุฉ ู…ุง ุงู†ุง ูƒุฏู‡ ุงู†ุง ุจุนุทูŠูƒ ุงู„ formula ุดูŠุช ูˆ
224
00:18:39,990 --> 00:18:46,750
ุณู„ุงู…ุชูŠ ู‡ุชุทู„ุนูŠ ุนู„ู‰ ุงู„ู‚ุงู†ูˆู† ุชุจุน ุงู„ proportions ูˆุงุถุญุŸ
225
00:18:46,750 --> 00:18:50,930
ุฅุฐุง ุตุงุฑ ู„ุฅู† ู†ุต ุงู„ุณุคุงู„ ุงู†ุญู„ ุทุงู„ู…ุง ู†ุนุฑูุช ุงู„ู‚ุงู†ูˆู†
226
00:18:50,930 --> 00:18:56,930
ุงู„ุตุญูŠ ุทุจุนุง of men and proportion of women ู‡ูˆ ุงู„
227
00:18:56,930 --> 00:19:01,400
vote yes ู‡ูˆ ุดุฎุต ุฅู…ุง ุจูŠุญูƒูŠ ู†ุนู… ุฃูˆ ุจูŠุญูƒูŠ ู„ุงุทุงู„ู…ุง
228
00:19:01,400 --> 00:19:04,060
ุฃุชูƒู„ู… ู†ุนู…ู„ู‡ ูŠุนู†ูŠ qualitative data ู…ุน ูƒุฏู‡ ุนู†ุฏูŠ
229
00:19:04,060 --> 00:19:08,640
proportions ุจูƒู„ ุชุฃูƒูŠุฏ on a proposition A ููŠ
230
00:19:08,640 --> 00:19:12,660
ุงู†ุชุฎุงุจุงุช ุจุฏูŠ ุฃูŠุฏ party one ูˆ party two ู…ูุชุฑุถ ุงู„
231
00:19:12,660 --> 00:19:16,480
two parties ูˆุงุญุฏุฉ ูˆ ุงู„ุชุงู†ูŠุฉ ู…ู…ูƒู† ุฃูŠุฏ ูุตูŠู„ A ูˆ
232
00:19:16,480 --> 00:19:20,900
ุงู„ุชุงู†ูŠุฉ ุฃูŠุฏ ูุตูŠู„ B ูˆ ู‡ูƒุฐุง in a random sample ุฃุฎุฏ
233
00:19:20,900 --> 00:19:27,670
ุนูŠู†ุฉ ู‚ุดูˆูŠุฉ 36 of 70 menู„ุญุธุฉุŒ ุงุด ุจูŠุญูƒูŠ .. ุณุชุฉ ูˆ
234
00:19:27,670 --> 00:19:30,550
ุชู„ุงุชูŠู† ู…ู† ุงุชู†ูŠู† ูˆ ุณุจุนุฉ ุฑุงุฌู„ and thirty-five of
235
00:19:30,550 --> 00:19:35,250
fifty women indicated they would vote yes ูŠุนู†ูŠ
236
00:19:35,250 --> 00:19:44,190
ุงู„ู„ูŠ ุจุฏูŠู‡ ูŠุญูƒูŠ ู†ุนู… ููŠู‡ ุฃู†ุฏู†ูˆุนูŠู†ุŒ men ูˆ women ุงู„ู…ู†
237
00:19:44,190 --> 00:19:52,250
ูƒุงู†ุช ุฅูŠุด ุนุฏุฏู‡ู…ุŸ seventy-two ููƒุงู† ูˆุงุญุฏ ุญูƒู‰ yesุฃู†ุง
238
00:19:52,250 --> 00:19:56,490
ู…ู‡ุชู… ุจุงู„ู€ 36 ู‡ุฏูˆู„ุŒ ุงู„ู€ 36 of men voted yes ู„ุฃูŠ
239
00:19:56,490 --> 00:20:02,390
proposition ูŠุนู†ูŠ ูˆ ุงู„ women ูƒุงู†ูˆุง ูˆุงุญุฏุฉ ุฎู…ุณูŠู†
240
00:20:02,390 --> 00:20:08,070
ูˆ ู„ุญุงูƒุฉ ู†ุนู… 35 ุฅุฐุง ุฃู†ุง ุฃุฎุฏุช ุงู„ data ู…ู† ู‡ู†ุง ูˆ ูˆุงุถุญ
241
00:20:08,070 --> 00:20:16,410
ูƒูŠู ู‚ุฑุฃุชู‡ุง ูุจุญูƒูŠ test at a five percent level of
242
00:20:16,410 --> 00:20:19,930
significance if there is ู‡ูˆ ุจูŠุณุฃู„ ุงู„ุณุคุงู„ ุงู„ูุฌูˆู‡ is
243
00:20:19,930 --> 00:20:23,290
there a significant differenceูŠุนู†ูŠ ู…ุง ุฃูƒูŠุฏ ู„ูˆ
244
00:20:23,290 --> 00:20:25,790
ูƒุฏุจุชูˆุง ุจุฅู† ุงู„ู„ู‡ hypothesis ุฃูƒูŠุฏ ฯ€ุงูŠ ูˆุงู† equal ุจุงูŠ
245
00:20:25,790 --> 00:20:30,750
ุชูˆู† ุงูˆ ุฅุฐุง ู…ุง ุญูƒูŠุช ุจุงูŠ ูˆุงู† minus ุจุงูŠ ุชูˆู† is dot
246
00:20:30,750 --> 00:20:36,010
zero sorry equals zero equals
247
00:20:36,010 --> 00:20:39,370
zero ุทุจ ุงู„ alternate ุฅูŠุด ู‡ูŠูƒูˆู†ุŸ ู‡ู†ุง ููŠ ุงู„ู…ุซู„ุฉ
248
00:20:39,370 --> 00:20:43,670
ู…ุงุญูƒุงุด ุฃู†ู‡ ุงู„ุฃูˆู„ ุฃุนู„ู‰ ุฃูˆ ุงู„ุฃูˆู„ ุฃู‚ู„ ุจูŠุญูƒูŠ ู‡ู„ ููŠ ูุฑู‚
249
00:20:43,670 --> 00:20:50,370
ูˆู„ุง ู„ุฃุŸ ู…ุง ุฃูƒูŠุฏ ู‡ุงุช two sided ูˆู„ุง one sidedุŸุทุจุนุง
250
00:20:50,370 --> 00:20:53,870
ุงู„ุงุชุฌุงู‡ ู…ุด ูˆุงุถุญ ู…ุงุญูƒุงุด increases ุงูˆ decreases ุงูˆ
251
00:20:53,870 --> 00:20:56,530
smaller ุงูˆ greater ุงู† ุงู†ุง ุจุญูƒูŠ there is a
252
00:20:56,530 --> 00:20:59,510
difference ุจุณ ู…ุน ูƒุฏู‡ by one does not equal by two
253
00:20:59,510 --> 00:21:06,370
ุงุฐุง ู…ุนู†ุงู‡ ุงู† by one minus by two is not zero ุงู†ุง
254
00:21:06,370 --> 00:21:12,570
ุฃุฎุฏุช ุงู„ู…ุนู„ูˆู…ุฉ ู…ู† ูˆูŠู†ุŸ ู…ู† ุงู„ุณุคุงู„ ู†ูุณูŠ ูุจุญูƒูŠ
255
00:21:12,570 --> 00:21:15,170
is there a difference ุงูˆ significant difference
256
00:21:15,170 --> 00:21:16,230
between the proportion
257
00:21:19,070 --> 00:21:23,470
ุฅุฐุง ู‡ุฐู‡ ุงู„ุฃูˆู„ู‰ ู…ุนู†ุงู‡ุง by one minus by two equals
258
00:21:23,470 --> 00:21:29,270
zero ุงู„ู…ุนู†ุงู‡ ุฏู‡ two proportions are equal we are
259
00:21:29,270 --> 00:21:32,150
testing this null hypothesis against alternate
260
00:21:32,150 --> 00:21:35,910
hypothesis by one minus by two is not zero this
261
00:21:35,910 --> 00:21:39,350
means there is significant difference between the
262
00:21:39,350 --> 00:21:45,050
proportions ุจุนุฏ ู…ุง ุฃุนู…ู„ ุญุณุงุจุงุชูŠ ุงู„ุญุณุงุจุงุช ุงู„ุนุงุฏูŠุฉ
263
00:21:45,050 --> 00:21:49,720
ุจุชุทู„ุน ุงู„ proportion ู„ ุงู„ min ุงู„ู„ูŠ ุญูƒูˆุง ู†ุนู…ุงู„ู„ูŠ ู‡ูŠ
264
00:21:49,720 --> 00:22:00,000
x1 over n1 ุงู„ู„ูŠ ู‡ูŠ 36 over 72 ู‡ุฐู‡ 50% ุงู„
265
00:22:00,000 --> 00:22:07,440
proportion ู„ู„ women who voted yes is x2 over n2 35
266
00:22:07,440 --> 00:22:14,960
ุนู„ู‰ 50 70% ุดูˆููˆุง ุฒูŠ ู…ุง ุญูƒูŠุช ู…ู† ุงู„ุฃูˆู„ ู…ู†ูุนุด ุฃุทู„ุน ุงู„
267
00:22:14,960 --> 00:22:17,360
B' ุฃุฌู…ุญู‡ู…
268
00:22:18,980 --> 00:22:23,600
ูˆ ุงุฌุณู…ู‡ุง ุงุชู†ูŠู† ูŠุนู†ูŠ ุณุชุฉ ู…ู† ุนุดุฑ ู‡ูŠ ุฏูŠ ู…ุด ุตุญ ุญุชู‰ ูˆุฅู†
269
00:22:23,600 --> 00:22:26,660
ูƒุงู†ุช ู‚ุฑูŠุจุฉ ู„ู„ู‚ูŠู…ุฉ ุงู„ู„ูŠ ุงู†ุง ุนุงูŠุฒู‡ุง ู„ูŠุดุŸ ู„ุฃู† ุงู„
270
00:22:26,660 --> 00:22:31,180
sample sizes ู…ุงู„ู‡ู… ุฒูŠ ุจุนุถ ู„ูˆ ุฒูŠ ุจุนุถ ุงู†ุง ู…ุงููŠุด
271
00:22:31,180 --> 00:22:35,860
ู…ุดูƒู„ุฉ ูุจุทู„ุน ุงู„ bold estimate for the overall
272
00:22:35,860 --> 00:22:42,660
proportion ู‡ูŠ B' ู„ูŠู‡ X1 plus X2 over N1 plus N2
273
00:22:45,810 --> 00:22:55,350
Lix is 35 and 70 sorry 71 the total over n1 plus
274
00:22:55,350 --> 00:23:05,270
n2 is 72 plus 50 is 122 ู…ุฌุฑุณ ู…ูˆุงุญุณ ุจูŠู† 122 ููŠ 958
275
00:23:05,270 --> 00:23:08,590
ู‡ุฐู‡
276
00:23:08,590 --> 00:23:12,750
ุงู„ู€ exact proportion ู‡ุฐู‡ ู…ุด ุนุงูŠุฒูŠู†ู‡ุง
277
00:23:16,610 --> 00:23:20,370
ุฃู†ุง ุจุนู…ู„ computations, calculations ุนุดุงู† ุฃุณุชุทูŠุน ุงู„
278
00:23:20,370 --> 00:23:26,970
Z statistic ุงู„ู„ูŠ ู‡ู†ุง just plug these values into
279
00:23:26,970 --> 00:23:33,290
this formula to get the value of Z statistic ูZ
280
00:23:33,290 --> 00:23:38,530
ู‡ุชุณุงูˆูŠ ุจูŠ ูˆู† ุฏุงุดุช
281
00:23:38,530 --> 00:23:41,150
ู…ุงู†ุณ ุจูŠ ุชูˆุฏุง ุจูŠ ูˆู† ุงูˆ ุจูŠ ูˆู† just ุจูŠ ูˆู†
282
00:23:45,420 --> 00:23:54,280
ุจ1.5-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0
283
00:23:54,280 --> 00:23:57,860
.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7
284
00:23:57,860 --> 00:23:58,000
-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0
285
00:23:58,000 --> 00:24:00,980
.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7
286
00:24:00,980 --> 00:24:02,360
-0.7-0.7-0.7-0.7-0.7-0.7
287
00:24:15,590 --> 00:24:24,650
ุซู… ุชุฒูŠุฏ ู…ู† 1 ุนู„ู‰ N1 ูˆู‡ูˆ 72 plus 1 over 50 ุงู„ู„ูŠ
288
00:24:24,650 --> 00:24:30,050
ู„ู…ุง ุชูŠุฌูŠ ุชุญุณุจ ุงู„ุญุณุงุจุงุช ุจุฏุฃ ุดูˆูŠู‡ ุงู„ุตุจุฑ ุชุญุณุจ ููŠ
289
00:24:30,050 --> 00:24:35,650
ุงู„ุฃูˆู„ ุงู„ู…ู‚ุงู… ุชุงุฎุฏ ุงู„ square root ุชู†ุณูŠุด ุงู„ square
290
00:24:35,650 --> 00:24:39,590
root ุจุนุฏูŠู† ุชุฌุณู… ุงู„ูุฑู‚ ุงู„ู„ูŠ ู‡ู†ุง ุนู„ู‰ ุงู„ square root
291
00:24:39,590 --> 00:24:47,250
ู„ูˆ ุฃุดุชุบู„ุช ุตุญ ุงู„ job negative2.1 ุฏุงูŠู…ุง ูŠูƒูˆู† ู‡ู†ุง
292
00:24:47,250 --> 00:24:51,590
index sense ู„ู„ุฅุฌุงุจุฉ ุงู„ู„ู‰ ุจุชุทู„ุน ูŠุนู†ูŠ ุงู„ proportion
293
00:24:51,590 --> 00:24:55,890
ุฃูˆู„ู‰ 50 ูˆุงู„ุชุงู†ู‰ ุงู„ 70 ุฃูƒูŠุฏ ุงู„ุฌูˆุงุจ ู‡ูŠุชุทู„ุน ุจุงู„
294
00:24:55,890 --> 00:25:02,030
negative ู…ุธุจูˆุทุŸ ู„ุฅู† ุทุงู„ู…ุง ุฃู‡ุฏ ุงู„ 50% ูˆ ุฃู‡ุฏ ุงู„ 70
295
00:25:02,030 --> 00:25:05,670
ู…ุนู†ุงู‡ ูƒุฏู‡ ุฃู† ุงู†ุง ูˆ ุงู†ุง ู…ูˆุฌูˆุฏ ู„ุฃู† ุงู„ B1 ุฃู‚ู„ ู…ู† ุงู„
296
00:25:05,670 --> 00:25:09,180
B2 ู…ุน ูƒุฏู‡ ุงู„ุฌูˆุงุจ ู„ุงุฒู… ูŠุทู„ุน ู…ุนุงู‡ ุจุงู„ negativeุฃู†ุง
297
00:25:09,180 --> 00:25:12,640
ุฎุจุฑุชูƒ ุงู„ุฅุดุงุฑุฉ ู…ู…ูƒู† ุชุฎุฑุจ ู…ุด ุจุงู‚ูŠ ุงู„ู…ุซู„ุฉุŒ ูˆุงุถุญุŸ
298
00:25:12,640 --> 00:25:16,080
ุจุงู„ุฐุงุช ู„ูˆ ูƒุงู† multiple choice ุงุญูƒูŠู„ูƒ ุจุงู„ู†ุณุจุฉ
299
00:25:16,080 --> 00:25:19,800
ู„ุฅูŠุฌุงุจุชูƒ ููŠ ุจูŠู‡ุŒ ููŠ ุงูŠู‡ุŒ ููŠ ูˆุงุญุฏุŒ ุฅูŠุด ุฅูŠุฌุงุจุชูƒ ููŠ
300
00:25:19,800 --> 00:25:23,080
ุงู„ู„ูŠ ุจุนุฏู‡ุŒ ูˆุงุถุญ ุจุงุฎุชู„ูุŒ ุจุงู„ุชุงู„ูŠ ู„ูˆ ุฃู†ุง ุบู„ุทุช ุฑุจู…ุง
301
00:25:23,080 --> 00:25:26,320
ููŠ ุงู„ุฅุดุงุฑุฉ ุงู„ู„ูŠ ู‡ู†ุงุŒ ุทูŠุฑ ุงู„ู…ุซู„ุฉุŒ ูˆุงุถุญุŸ
302
00:25:30,580 --> 00:25:34,540
ุงู„ุฎุทูˆุฉ ุงู„ุชุงู„ูŠุฉ ู…ู‡ู…ุฉ ุฌุฏุง ุชุทู„ุน ู„ู€ Critical values
303
00:25:34,540 --> 00:25:38,000
ู‡ู†ุง ู†ุชุญุฏุซ ุนู† ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
304
00:25:38,000 --> 00:25:38,080
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
305
00:25:38,080 --> 00:25:38,700
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
306
00:25:38,700 --> 00:25:41,080
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
307
00:25:41,080 --> 00:25:41,360
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
308
00:25:41,360 --> 00:25:42,980
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
309
00:25:42,980 --> 00:25:48,160
ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ ุงุชุตุงู„ูŠู† ุงูˆ
310
00:25:48,160 --> 00:25:56,360
ุงุชุตุงู„ูŠู† ุงูˆ
311
00:25:56,360 --> 00:26:01,600
ุงู‡ุคู„ุงุก ู‡ู… ุงู„ู‚ูŠู… ุงู„ุฑุฆูŠุณูŠุฉ ูู‡ุฐุง ูŠุนู†ูŠ ุฅุฐุง ูƒุงู† ู‚ูŠู…
312
00:26:01,600 --> 00:26:08,140
ุงู„ุงู†ุชุฌุงุฑ ุชุณู‚ุท ููŠ ุฃุนู„ู‰ ุญุงุฌุฉ ุงู„ุทุฑู ุงู„ุฃูŠู…ู† ูŠุนู†ูŠ ุฅุฐุง
313
00:26:08,140 --> 00:26:13,060
ูƒุงู† ุงู„ู‚ูŠู… ุฃูƒุจุฑ ู…ู† 196 ุฃูˆ ุฅู„ู‰ ุงู„ุฌุงู†ุจ ุงู„ุฃุณูู„ ุฃู‚ู„ ู…ู†
314
00:26:13,060 --> 00:26:20,480
ู†ู‚ู„ 1.96 ุซู… ู†ู†ูุฐ ุงู„ู‡ูŠุจูˆุทูŠุฒ ุงู„ุงู† ู‡ู„ ู‡ุฐุง ุงู„ู‚ูŠู… ุชุณู‚ุท
315
00:26:20,480 --> 00:26:25,160
ููŠ ุงู„ู…ู†ุทู‚ุฉ ุงู„ุฑุฆูŠุณูŠุฉุŸ ูˆุงุถุญ ู…ูˆุฌูˆุฏ ู‡ู†ุง ู…ุด ู‡ูŠูƒู…ุน ูƒุฏู‡
316
00:26:25,160 --> 00:26:29,920
ููŠ ุงู„ rejection ุฅุฐุง ุงู„ decision reject the null
317
00:26:29,920 --> 00:26:36,300
hypothesis ุฅุฐุง ุงู„ decision reject ุงู„ zero this
318
00:26:36,300 --> 00:26:39,360
means there is evidence of a significant
319
00:26:39,360 --> 00:26:42,480
difference in the proportion of men and women ููŠ
320
00:26:42,480 --> 00:26:46,940
ูุฑู‚ ุจูŠู† ุงู„ุงุชู†ูŠู† ูŠุนู†ูŠ ู‡ุฐุง ู…ุนู†ุงู‡ ุงู„ conclusion ุชุจุนูŠ
321
00:26:46,940 --> 00:26:51,820
ุงู† by one does not equal by two ูŠุนู†ูŠ ู†ุณุจุฉ ุงู„ุฑุฌุงู„
322
00:26:51,820 --> 00:26:59,100
ุญูƒูˆุง ู†ุนู… ุชุฎุชู„ูุทุจ ู„ูˆ ุนุงูŠุฒ ุฃุนู…ู„ testing ูˆ ุฃุนุฑู ู…ุง
323
00:26:59,100 --> 00:27:04,080
ุฅุฐุง ูƒุงู† ุงู„
324
00:27:04,080 --> 00:27:10,420
B1 smaller than B2 ูˆ ู„ุง B1 smaller than B2 ุงู„ุขู† ู…ุด
325
00:27:10,420 --> 00:27:15,580
ู‡ูŠุฎุชู„ู ููŠ ูƒู„ ุงู„ุญู„ุŒ ุฅูŠุด ุจุชุฎุชู„ูุŸ ุฃุณู…ุน ู…ู† ูˆุงุญุฏุฉ ุจุณ ุจุณ
326
00:27:15,580 --> 00:27:21,440
ุงู„ critical value ุจุฏู„ two-sidedุŒ ู†ุฑุฌุน ุชุงู†ูŠุฉุŒ ู‡ูƒูˆู†
327
00:27:21,440 --> 00:27:25,170
ุนู†ุฏูŠ lower tail testุŒ ู‡ูƒูˆู† ูˆุงุญุฏุฉ ุจุณ ุนู„ู‰ ุงู„ุดู…ุงู„ูููŠ
328
00:27:25,170 --> 00:27:31,170
ุงู„ู…ุซู„ุฉ ู‡ูŠ ุฏูŠ ุจุณ ุงู„ุงุฎุชู„ุงู ููŠ ูƒู„ ุงู„ุญู„ ู‡ูƒูˆู† ุนู†ุฏู‡ุง
329
00:27:31,170 --> 00:27:39,610
ู…ูˆุฌุฉ ูˆู„ุง ุณุงู„ุจุŸ ุณุงู„ุจ negative ูƒุฏู‡ุดุŸ six over five
330
00:27:39,610 --> 00:27:45,290
ู…ุด ู‡ูŠูƒุŸ and five percent ู…ุฌุณู…ุด ุนู„ู‰ ุงุชู†ูŠู† ู…ุธุจูˆุทุŸ
331
00:27:45,290 --> 00:27:49,930
ูŠุนู†ูŠ ุงู†ุง ุญูƒูŠุช ู„ูˆ ู„ูˆ ู„ูˆ ู„ูˆ ู„ูˆ ู„ูˆ ุงู„ุณุคุงู„ ููŠ ุฃุตู„ู‡ ู…ุด
332
00:27:49,930 --> 00:27:54,120
ูƒุงู† by one does not equal by two ู…ุด ู‡ูŠูƒุŸู‡ูŠูƒ ุงู„ุญุงู„ุฉ
333
00:27:54,120 --> 00:27:58,780
ุงู„ุตุญ ู‡ู†ุฎู„ุตู‡ุง ู„ูˆ ุงูุชุฑุถ ุบูŠุฑุช ุงู„ู…ุซู„ุฉ ุจุฏู„ by one does
334
00:27:58,780 --> 00:28:02,300
not equal by two ุตุงุฑุช by one ุฃู‚ู„ ู…ู† by .. ุญุฏุฏุชู‡ุง
335
00:28:02,300 --> 00:28:05,200
ุนู„ู‰ ุงู„ุดู…ุงู„ ุทุจ ู…ุด ุตุญูŠุญ ุฃุญุฏุฏู‡ุง ุนู„ู‰ ุงู„ูŠู…ูŠู† ุจูƒูˆู† ุบุจูŠ
336
00:28:05,200 --> 00:28:09,620
ู„ูˆ ุญุฏุฏุชู‡ุง ุนู„ู‰ ุงู„ูŠู…ูŠู†ุŒ ู…ุธู‡ุฑุŸ ู„ูŠุดุŸ ุงู„ู„ูŠ ุจุชุถุญูƒ ุฅูŠู‡
337
00:28:09,620 --> 00:28:16,300
ุฃู†ุชุŸ ู„ูŠุด ุบู„ุท ุงู„ุณุคุงู„ุŸ ู„ูŠุด ู„ูˆ ุญูƒูŠุช by oneุŸ ู„ุฃู†ู‡
338
00:28:16,300 --> 00:28:22,980
ู…ู…ูƒู†ุด ูŠูƒูˆู† .. ู…ู…ูƒู†ุด ูˆุงุญุฏ ูŠ .. ูŠุณูˆูŠ .. ูŠ .. ูŠ .. ูŠ
339
00:28:22,980 --> 00:28:23,060
.. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ
340
00:28:23,060 --> 00:28:24,450
.. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ .. ูŠ ..ู…ุด ุจุฏู‡
341
00:28:24,450 --> 00:28:29,830
ุงุญูƒูƒ ุทุงู„ุน ู…ุงู†ูˆุด ู…ุนู†ู‰ ู…ุง ู‡ูŠ ุงู„ู…ุดูƒู„ุฉ ุฃู†ุง ุงู„ู…ูุฑูˆุถ ุงู†ุง
342
00:28:29,830 --> 00:28:35,330
ุงุญุงูƒูƒ ู„ู‡ุง ุนู„ู‰ ูู‡ู… ุงู†ุง
343
00:28:35,330 --> 00:28:39,650
ุณุคุงู„ูƒ ู‡ุงู„ุชุงู„ุฉ ู…ุฑุฉ ุชุงู†ูŠุฉ ู„ูŠุด ู…ู† ุงู„ุบุจุงุก ุจุฃูƒุฏ ุนู„ูŠู‡ุง
344
00:28:39,650 --> 00:28:45,950
ู…ู† ุงู„ุบุจุงุก ุงู†ูƒ ุชุญูƒูŠ by one ุงูƒุจุฑ ู…ู† by two ุงู„ุณุจุจ
345
00:28:48,450 --> 00:28:52,730
ู„ุฃู† ุงู„ู€ B1 ุฃู‚ู„ ู…ู† ุงู„ู€ B2 ู‡ุฐู‡ ุงู„ู€ 51 ูˆ ุงู„ู€ 70
346
00:28:52,730 --> 00:28:56,450
ูุจุงู„ุชุงู„ูŠ ู…ุด ู…ู†ุทู‚ูŠ ูŠุนู†ูŠ it doesn't make any sense
347
00:28:56,450 --> 00:29:00,190
if you state the alternative B1 greater than B2
348
00:29:00,190 --> 00:29:05,630
ู‡ุชูƒูˆู† ุฃู‚ู„ ู…ู† B2 ูˆุงุถุญุŸ ุทุจุนุง ู„ูŠุด ุงู„ุญุงุฌุฉ ูŠุฎุชู„ู ุจุณ ุงู„
349
00:29:05,630 --> 00:29:10,850
critical value ู‡ุชูƒูˆู† ุจุณ ุนู†ุฏ Z ฮฑุŒ negative Z ฮฑ ูˆู„ูˆ
350
00:29:10,850 --> 00:29:14,530
ุชูƒูˆู† Alpha 5% ุจุชุทู„ุนู‡ุง ุจุงู„ุฌูˆุงุจ ู…ู† ุงู„ tables
351
00:29:14,530 --> 00:29:19,710
negative 1.645Now is this value again for the
352
00:29:19,710 --> 00:29:24,370
rejection regionุŸ ูˆุงุถุญุŒ ู…ูˆุฌูˆุฏุŒ ูŠุนู†ูŠ ู…ุธุจูˆุทุŸ ุฅุฐุง
353
00:29:24,370 --> 00:29:27,290
ุจุฑุถู‡ we rejected on hypothesis ู…ุน ูƒุฏู‡ ุงู„ buy one
354
00:29:27,290 --> 00:29:31,290
ู…ุงู„ู‡ ุฃู‚ู„ ู…ู† buy two ู…ุน ูƒุฏู‡ ุงู„ proportion ู„ู„ men
355
00:29:31,290 --> 00:29:35,730
ุงู„ู„ูŠ ุญูƒูˆุง yes ู†ุณุจุชู‡ ู…ุงู„ู‡ุง ุฃู‚ู„ ู…ู† ุงู„ proportion
356
00:29:35,730 --> 00:29:39,730
ุงู„ู„ูŠ ุญูƒูˆุง ู„ู„ women ุงู„ู„ูŠ ุญูƒูˆุง ู†ุนู… ูŠุนู†ูŠ ุงู„ุฑุฌุงู„ ุญูƒูˆุง
357
00:29:39,730 --> 00:29:45,930
ู†ุนู… ุฃู‚ู„ ู…ู† ู†ุณุจุฉ ุงู„ู†ุณุงุก ุงู„ู„ูŠ ุญูƒูˆุง ู†ุนู… ูˆุงุถุญุŸ ููŠ ุฃูŠ
358
00:29:45,930 --> 00:29:52,400
ุณุคุงู„ุŸุฅู„ุง ุจุนุฏ ู‡ูŠ ู…ุงููŠุด ุฎู„ุตุฉ ุงู„ุดุจุทุฉุŒ ุงู„ุดุจุทุฉ ุนุดุงู† ูƒุฏู‡
359
00:29:52,400 --> 00:29:59,920
ุฎู„ุตุŒ ุจุณ ู„ุบุงูŠุฉ ู‡ู†ุง ุงู„ุดุจุทุฉ ุนุดุงู† ุฎู„ุตุŒ ุฃูŠ ุณุคุงู„ุŒ ุงู„ู„ู‡ู…
360
00:29:59,920 --> 00:30:00,520
ุชูƒุจุฑ ุนุงููŠุฉ