From Problems 11.15, 11.16, and 11.17,
a. To perform the Tukey procedure, how many degrees of freedom are there in the numerator, and how many degrees of freedom are there in the denominator of the Studentized range distribution?
b. At the 0.05 level of significance, what is the upper-tail critical value from the Studentized range distribution?
c. To perform the Tukey procedure, what is the critical range?