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
Algebra ->
Probability-and-statistics
-> 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
Log On
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)
