Refer to Exercise 14.23.

a. Apply Tukey’s multiple comparison method to determine which pairs of means differ.

b. Use the Bonferroni adjustment test to determine whether there are differences between each of the following pairs: PARTYID: 0 and 1, 0 and 2, 1 and 2.

c. Use the Bonferroni adjustment test to determine whether there is enough evidence to infer that there are differences between each of the following pairs: PARTYID: 4 and 5, 4 and 6, 5 and 6.

In exercise 14.23

Which political party is more educated? Conduct a test to determine whether differences in education (EDUC) actually exist among some of the eight political categories.