When comparing two sample means, we can safely reject the null hypothesis if ______.
A) the confidence intervals overlap
B) the confidence intervals are higher than .05
C) the confidence intervals are lower than .05
D) the confidence intervals do not overlap

Question

Quizplus · Accepted Answer

If the confidence intervals do not overlap, it indicates that the difference between the two sample means is statistically significant and not likely due to chance. This is the criteria for rejecting the null hypothesis. Therefore, choice D is the correct answer.

When Comparing Two Sample Means, We Can Safely Reject the Null