Suppose there is sufficient evidence to reject H0: 1 = 2 = 3 = 4 using a

Question:

Suppose there is sufficient evidence to reject H0: µ1 = µ2 = µ3 = µ4 using a one-way ANOVA. The mean square error from ANOVA is determined to be 26.2. The sample means are x̅1 = 42.6, x̅2 = 49.1, x̅3 = 46.8, x̅4 = 63.7, with n1 = n2 = n3 = n4 = 6. Use Tukey's test to determine which pairwise means are significantly different using a family wise error rate of a = 0.05.