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Assume that we have selected two independent random samples from populations having proportions pl and P2 and that picture 1-80011000 = 0.8 and a picture 2-950/1000-0.95. Test Ho·P:-P22-12 versus H P1 P2く-12 by using a-value and by setting α equal to 10, 05, 01, and .001. How much evidence is there that P2 exceeds pl by more than 127 Round p-value to 4 decimal and z value to 2 decimal places. Negative amount should be indicated by a minus sign.) p - value- Reject Ho at α : (Click to select) but not at α (Click to select) Click to select)

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Answer #1

Here we have use 2 sample proportion test

To test Unde Ho, test statistic is Here 2 = 0.95 · Pobled esti mate of p= p= 800十950 looot loo0 \75 200一一 ラ 0.875 = and-= 1 -P = 1-0.875 =0.1 2.5 O. 8-o.95 フニー10.1420 --lo.l4 くo . ooool significant a 5 y. ), os く0.00 ool significant at lol. _.0J. Since, m all cases, p-value 〈 Reject Ho at 1% , 5% and lo..

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