When sample sizes are equal, MSWithin is figured by
A) summing the population variance estimates figured within each group and dividing by the total number of participants (over all groups).
B) summing the population variance estimates figured within each group and dividing this sum by the number of groups.
C) multiplying the within-groups sum of squares (SSWithin) by the size of each sample (n).
D) dividing the within-groups sum of squares (SSWithin) by the size of each sample (n).
Question 2
In an analysis of variance, if the null hypothesis is false, then
A) the variation between sample means reflects the variation within the populations as well as the variation between the population means.
B) the within-groups variance is significantly larger than the between-groups variance.
C) the variance within each sample is larger than if the null hypothesis were true.
D) the variance between sample means is no greater than the variance within the population with the largest variance.
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