A completely randomized design has been analyzed by using a one-way ANOVA. There are four treatment groups in the design, and each sample size is six. MSE is equal to 2.389. Using a = .05, compute Tukey's HSD for this ANOVA. Using the results of problem 11.5, compute a critical value by using the Tukey Kramer procedure for groups 1 and 2. Use a = .05. Determine whether there is a significant difference between these two groups.