A public opinion poll surveyed a simple random sample of 550 voters in Oregon. The respondents...

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 α=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.

Expert Solution

Sol:

chi sq test statistic=18.0789

orchestra answered 1 year ago

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