Question

if an anova test is conducted and the null hypothesis is rejected, what does this indicate?
a at least one pair of population means is different.
b the population means are equal.
c all population means are different.
d the p - value is not less than alpha.

Explanation:

The null hypothesis in an ANOVA test is that all population means are equal. Rejecting it implies that this equality assumption is false, so at least one pair of population means is different.

Answer:

A. At least one pair of population means is different.