SOLUTION: In a survey of 6000 ;women, 3431 say they change their nail polish once a week. Construct a 99 % confidence interval for the population proportion of women who change their nail po
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Question 1121479: In a survey of 6000 ;women, 3431 say they change their nail polish once a week. Construct a 99 % confidence interval for the population proportion of women who change their nail polish once a week.
A 99% confidence interval for the population proportion is (
nothing,
nothing)
(Round to three decimal places as needed.) Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! point estimate is 3431/6000=0.572
CI is 0.572+/- z*SE, the second part is 2.576*sqrt(p*(1-p)/n) sqrt(0.245/6000)=0.0064
CI half-interval is 0.0165 or 0.017
(0.555, 0.589)
