Question

Which of the following is NOT true of confidence interval estimates of the difference between two population​ proportions? A.The confidence interval uses a standard deviation based on estimated values of the population proportions. B.A confidence interval is used to test a claim about two population proportions. C.A confidence interval is used to estimate the difference between two population proportions. D.If a confidence interval estimate of p 1minusp 2 does not include​ 0, we have evidence suggesting that p 1 and p 2 have different values.

Answer 1

B. A confidence interval is used to test a claim about two population proportions.

Explanation:

Confidence interval estimates are used to estimate the range within which the true difference between two population proportions is likely to fall. They provide a range of values that is likely to contain the true difference with a certain level of confidence. This range is calculated using sample data and involves using a standard deviation based on estimated values of the population proportions.