For the data in Table 9.1, each group has 10 observations, so when using Tamhane’s method to compute confidence intervals for all pairwise differences, the degrees of freedom are 9 and the value of h in Table 11 of Appendix B is 4.3.

Verify that if the goal is to have confidence intervals with FWE equal to 0.05 and lengths 0.5, the required sample sizes for each group are 50, 11, 18, and 17.