Repeat Exercise 12.7, using Holm’s multistage test. What differences do you find between these answers and the answers to Exercise 12.7? Calculate the Tukey test on the data in the example, and...

Repeat Exercise 12.7, using Holm’s multistage test. What differences do you find between these answers and the answers to Exercise 12.7?

Calculate the Tukey test on the data in the example, and compare your results to those you obtained for Exercise 12.10.

Why might you be more interested in running specific contasts on the data referred to in Exercises 12.10 and 12.11?