When carrying out an analysis of variance with equal sample sizes, the estimated variance of the distribution of means is converted to an estimated variance of the population of individual scores by
a) multiplying the estimated variance of the distribution of means by the number of scores in each sample
b)dividing the estimated variance between groups by the number of groups
c) dividing the estimated variance of the distribution of means by the number of scores in each sample
d) multiplying the estimated variance of the population of individual scores by the number of groups