If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?
A) The p-value is less than α.
B) The population means are equal.
C) At least one pair of population means is different.
D) All population means are different.

Question

Quizplus · Accepted Answer

If the null hypothesis is rejected in an ANOVA test, it means that at least one pair of population means is different, indicating that there is a significant difference between groups. The rejection of the null hypothesis is done based on the calculated p-value being less than the chosen level of significance (α). However, this does not necessarily mean that all population means are different, as there could be some groups with similar means.

If an ANOVA Test Is Conducted and the Null Hypothesis