SOLUTION: In a survey of 1004 randomly selected individuals, 442 felt that President George W. Bush spent too much time away from Washington. Find a 95% confidence interval for the true popu

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Question 1161898: In a survey of 1004 randomly selected individuals, 442 felt that President George W. Bush spent too much time away from Washington. Find a 95% confidence interval for the true population proportion.
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
p hat=442/1004=0.4402
95% CI half-interval is z(0.975)*sqrt(p(1-p)/n)=1.96*sqrt(.4402*.5798/1004)=0.0312
the 95% CI is (0.409, 0.471)

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