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September 5, 2015

Homework Help: Statistics

Posted by Lorie on Thursday, October 13, 2011 at 1:49pm.

A private medical clinic wants to estimate the true mean annual income of its patients. The clinic needs to be within $500 of the true mean. The clinic estimates that the true population standard deviation is around $2,300. If the confidence level is 95%, find the required sample size in order to meet the desired accuracy.

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