The F Test Statistic Is the Ratio of The

The F test statistic is the ratio of the:

A) estimate of the population mean based on the differences among the sample standard deviations to the estimate of the population variance based on the variation within the samples.
B) estimate of the population variance based on the differences among the sample means to the estimate of the population variance based on the variation within the samples.
C) estimate of the population variance based on the sums of the sample means to the estimate of the population variance based on the variation within the samples.