Refer to Exercise 14.26.

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 of Independents: PARTYID: 2 and 3, 2 and 4, 3 and 4.

In exercise 14.26

The survey asked the question, “Should government reduce income differences between rich and poor (EQWLTH: 1 = Government should reduce differences; 2, 3, 4, 5, 6, 7 = No government action)? Is there enough evidence to infer that there are differences among some or all of the eight political groups?