In constructing a confidence interval estimate for the difference between two population proportions, what is the most appropriate option?
A) Pool the population proportions when the populations are normally distributed.
B) Pool the population proportions when the population means are equal.
C) Pool the population proportions when they are equal.
D) Never pool the population proportions to construct a confidence interval for.

Question

Quizplus · Accepted Answer

It is never appropriate to pool the population proportions when constructing a confidence interval for the difference between two population proportions. Pooling is only appropriate when conducting a hypothesis test for the difference between two population proportions.

In Constructing a Confidence Interval Estimate for the Difference Between