As a general rule, in an ANOVA if the variance estimate of the group with the largest estimate is no more than __________ that of the smallest and the sample sizes are equal, the conclusions using the F distribution should be adequately accurate.
A)1 or 2
B)4 or 5
C)around 10
D)around 25

Question

Quizplus · Accepted Answer

The rule of thumb for ANOVA (Analysis of Variance) is that if the variance estimate of the group with the largest estimate is no more than 4 or 5 times that of the group with the smallest estimate and the sample sizes are equal, the conclusions drawn using the F distribution should be adequately accurate. This guideline helps ensure that the assumption of homogeneity of variances (or homoscedasticity) is not severely violated.

As a General Rule, in an ANOVA If the Variance