Which of the following is a necessary assumption of the ANOVA model?
A) Observations come from populations with equal means.
B) Observations come from populations with equal variances.
C) Sample sizes are equal for each group.
D) Dependent variables are measured on a ratio scale.

Question

Quizplus · Accepted Answer

ANOVA (Analysis of Variance) assumes that the observations come from populations with equal variances, also known as the assumption of homogeneity of variances. This is crucial for the F-test in ANOVA to be valid.

Which of the Following Is a Necessary Assumption of the ANOVA