Use Chi-square test.A study of voting preferences among enlisted soldiers (of differing educational levels) in the military reveals the follow patterns (the sample size if 445).
1 Of 395 high school graduates, 90 describe themselves as Democrats, 170 as Independents, and 135 as Republicans
2 Of 27 college graduates, 3 describe themselves as Democrats, 18 as Independents, and 6 as Republicans
3 Of 23 who did not complete high school, 7 describe themselves as Democrats, 7 as Independents, and 9 as Republicans
Using the six-step hypothesis-testing framework from class, please test for independence between the level of education and political party affiliation. Set the level of significance at .05. (9 points)
n = , a=
What is your conclusion? Are the two variables independent?