Suppose You Are Examining the Difference Between Two Means, and You

Multiple Choice

Suppose you are examining the difference between two means, and you conduct a two-sided hypothesis test and your friend constructs a confidence interval.Assuming that both reveal that the null hypothesis should be rejected, what can the confidence interval tell you that the hypothesis test cannot?

A) The magnitude of the difference in the means.
B) The direction of the difference in the means.
C) How much variability there was in the observed results.
D) All of the above.