One limitation of ANOVA is that, when the null hypothesis is rejected, the test________.
A) does not tell us which sample mean(s) is/are different.
B) tells us nothing about the standard deviations.
C) does not tell us which population variances are zero.
D) does not tell us which population variances are greater than zero.

Question

Quizplus · Accepted Answer

ANOVA only tells us that there is a significant difference between at least two of the group means, but it does not indicate which specific group(s) are different from each other. Follow-up tests, such as post-hoc tests, are needed to determine which group mean(s) are different.

One Limitation of ANOVA Is That, When the Null Hypothesis