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July 30, 2015

Homework Help: business statistics

Posted by Samantta on Saturday, August 1, 2009 at 11:36am.

If you are interested in determining the average of a 3-minute telephone call to locations within the continental U.S. what sample size must you take to be 96% confidential that the results will be within $.75 of the true mean cost per call? From the phone company, you have gotten an estimate of=7.71?

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