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In: Statistics and Probability

A survey of voter sentiment was conducted in four mid-city political wards to compare the fraction...

A survey of voter sentiment was conducted in four mid-city political wards to compare the fraction of voters favoring candidate A. Random samples of 200 voters were polled in each of the four wards with results as shown.

Ward 1

Ward 2

Ward 3

Ward 4

Totals

Favor A

76

53

59

48

236

Not Favoring A

124

147

141

152

564

Totals

200

200

200

200

800

Does the data present sufficient evidence to indicate that the fractions of voters favoring candidate A differ in the four wards? (Test the hypothesis of independence of the two classifications using α = 0.05).

Don't understand equations in other answer and there is only one other answer.

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orchestra answered 2 years ago
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