If a Bonferroni F-test is used to test the signicance of 8 orthogonal contrasts constructed from 15 treatment

means, at what value must PC be set in order to achieve a familywise error rate of F =0 .01?

A. 0.01 because the F-test is insensitive to multiple testing.

B. 0.01/8 because there were 8 tests conducted.

C. 0.01/15 because there were 15 population means

D. 0.01/120 to adjust for both the number of tests and population means.

E. none of the above