Refer to Exercise XXXXXXXXXXIf differences in income exist, is it because higher-income Americans work harder? Can we conclude from the data that there are differences in the hours worked (HRS1)...

Refer to Exercise 14.24. If differences in income exist, is it because higher-income Americans work harder? Can we conclude from the data that there are differences in the hours worked (HRS1) between the eight political groups?

Exercise 14.24

Does income affect the way Americans choose which party to support? Conduct a statistical procedure to determine whether there are differences in income (RINCOME) between some or all of the eight political groups.