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April 24, 2014

Homework Help: Statistics

Posted by Julio on Wednesday, June 6, 2012 at 10:02am.

It is known that the standard deviation for the number of minutes women spend applying makeup everyday is 17 minutes if you want to construct a 95% confidence interval for the mean amount of time women spend applying make up with a margin of error of no more than 5 mins. At least how many women must you survey

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