Question: Assuming that n1 = n2, find the sample sizes needed to estimate (p1 - p2) for each of the following situations: a. SE = .01

Assuming that n1 = n2, find the sample sizes needed to estimate

(p1 - p2) 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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