If the sample proportions are p1 = 15/60 and p2 = 20/90,normality may be assumed in a test comparing the two population proportions.

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Quizplus · Accepted Answer

The sample sizes of both proportions are large enough (n1p1=15, n1(1-p1)=45, n2p2=20, n2(1-p2)=70) to satisfy the normality assumption for the sampling distribution of the difference in proportions. Therefore, normality can be assumed in a test comparing the two population proportions.

If the Sample Proportions Are P1 = 15/60 and P2