When Analyzing the Set of Differences in a Paired T-Test

Multiple Choice

When analyzing the set of differences in a paired t-test procedure, if the confidence interval for the differences does not include zero, we expect the results of our t-test to be which of the following?

A) P > 0.05 and we fail to reject the null hypothesis of equal means.
B) P > 0.05 and we reject the null hypothesis of equal means.
C) P < 0.05 and we fail to reject the null hypothesis of equal means.
D) P < 0.05 and we reject the null hypothesis of equal means.