Question: A post-hoc test is warranted when: the F is significant and there are more than two groups. we fail to reject the null hypothesis in

A post-hoc test is warranted when:

theFis significant and there are more than two groups.

we fail to reject the null hypothesis in an ANOVA.

we reject the null hypothesis when performing an independent-groups t test.

we have an a priori prediction about which group means will differ.

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