In an Analysis of Variance,if the Within-Groups Variance Estimate Is

Multiple Choice

In an analysis of variance,if the within-groups variance estimate is about the same as the between-groups variance estimate,then

A) the null hypothesis should be rejected.
B) any difference between sample means is probably due to random sampling error.
C) an error has been made in computing the between-groups and the within-groups variance estimates.
D) any difference between sample means is probably due to a real difference caused by experimental conditions.