A public opinion poll surveyed a simple random sample of 550 voters in Oregon. The respondents were asked which political party they identified with most and were categorized by residence. Results are shown below. Decide if voting preference is independent from location of residence. Let=0.05.

Republican

Democrat

Independent

NW Oregon

85

103

22

SW Oregon

45

66

10

Central Oregon

46

53

9

Eastern Oregon

67

33

11

Enter the test statistic - round to 4 decimal places.