Chi Square of Independence

A survey was conducted asking 200 randomly selected state representatives if they felt their opinions on a bill were related to their party affiliation. The results are shown in the contingency table given below. Test the claim that opinions and party affiliation are independent using the Chi-Square test for independence. Use a = 0.05.

Party

Approve

Disapprove

No opinion

Republican

42

20

14

Democrat

50

24

18

Independent

10

16

6

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