SOLUTION: In a poll of 278 registered voters in a certain city, 67% said that they were in favor of a bill which would limit growth and development in their city. Construct a 95% confidence

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Question 440969: In a poll of 278 registered voters in a certain city, 67% said that they were in favor of a bill which would limit growth and development in their city. Construct a 95% confidence interval for the proportion of voters who are in favor of the bill.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
In a poll of 278 registered voters in a certain city, 67% said that they were in favor of a bill which would limit growth and development in their city. Construct a 95% confidence interval for the proportion of voters who are in favor of the bill.
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p-hat = 0.67
ME = 1.96*sqrt(0.67*0.33/278) = 0.0553
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95% CI: 0.67-0.0553 < p < 0.67+0.0553
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Cheers,
Stan H.
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