Usually for an ANOVA the Variances in All the Groups

Multiple Choice

Usually for an ANOVA the variances in all the groups should be the same, but when can this assumption be relaxed?

A) The samples are large, the same size, and the variances differ by less than tenfold.
B) The samples are large, the same size, and the variances differ by less than threefold.
C) The samples are small, the same size, and the variances differ by less than tenfold.
D) The samples are small, the same size, and the variances differ by less than threefold.