A 4 X 5 Factorial ANOVA with Six Scores Per $\alpha$

Multiple Choice

A 4 x 5 factorial ANOVA with six scores per cell produced a MS_AB = 40 and a MS_error = 20. For the factor with 5 levels and $\alpha$ = .05, a Tukey HSD would

A) not be appropriate in this instance
B) find a mean difference of 3.60 significant
C) find a mean difference of 3.80 significant
D) find mean differences of both 3.60 and 3.80 significant
E) find differences of neither 3.60 nor 3.80 significant.