What test do we use to check for homogeneity of variance?

Mann-Whitney test

Sidak test

Levene's test

Wilcoxon test

Which of the following is similar to the paired t-test but accurate for non-normal data distributions?

Levene's test

Wilcoxon test

Mann-Whitney test

Durbin Watson test

When do we use the Sidak's test?

t-test with unequal group n's.

ANOVA with equal group n's.

ANOVA with unequal group n's.

t-test with unequivalent variance

When do we use the Kruskal-Wallis test?

Anytime the Levene's test is not significant

none of these answers

in a t-test when pretest criteria aren't met

in ANOVA when pretest criteria aren't met

ANCOVA is best used in which of the following situations?

None of these answers.

When you want to know the covariation between two independent variables

When you want to test for a potentially confounding variable for your ANOVA analysis.

When you want to use ANOVA for two groups.