Question: Assuming that n1 - n2, find the sample sizes needed to estimate (p1 - p2) for each of the following situations: a. Margin of error

Assuming that n1 - n2, find the sample sizes needed to estimate (p1 - p2) for each of the following situations:
a. Margin of error = .01 with 99% confidence. Assume that p1 ≈ .4 and p2 ≈ .7.
b. A 90% confidence interval of width .05. Assume that there is no prior information available to obtain approximate values of p1 and p2.
c. Margin of error = .03 with 90% confidence. Assume that p1 ≈ .2 and p2 ≈ .3.

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