Which statement is incorrect?
A)We need a Tukey test because ANOVA does not tell which pairs of means differ.
B)Hartley's test is needed to determine whether the means of the groups differ.
C)ANOVA assumes equal variances in the c groups being compared.

Question

Quizplus · Accepted Answer

Hartley's test is not used to determine whether the means of the groups differ. It is used to test the assumption of equal variances among the groups before conducting an ANOVA. Choice A is correct as a Tukey test is used to determine which pairs of means differ after conducting an ANOVA. Choice C is also correct as ANOVA assumes equal variances in the c groups being compared.

Which Statement Is Incorrect