Question: Assuming that n1 = n2, find the sample sizes needed to estimate 1p1 - p22 for each of the following situations: a. SE = .01

Assuming that n1 = n2, find the sample sizes needed to estimate 1p1 - p22 for each of the following situations:

a. SE = .01 with 99% confidence. Assume that p1 ≈ .4 and p2 ≈ .7.

b. A 90% confidence interval of width .05. Assume there is no prior information available with which to obtain approximate values of p1 and p2.

c. SE = .03 with 90% confidence. Assume that p1 ≈ .2 and p2 ≈ .3.

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