Refer to Exercise 14.27.

a. Use Tukey’s multiple comparison method to determine which pairs of political parties differ.

b. Use an appropriate method the compare the three Independents with the other. That is, test for the following pairs of means PARTYID: 2 and 3, 2 and 4, and 3 and 4.

In exercise 14.27

Is there enough statistical evidence to conclude that the eight political categories differ in their responses to this question, “Should government improve standard of living of poor people (HELPPOOR: 1 = Government act; 2, 3, 4, 5 = People should help themselves)?