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May 23, 2015

Homework Help: statistics

Posted by chalulu on Sunday, March 13, 2011 at 5:30pm.

A researcher at a major hospital wishes to estimate the proportion of the adult population of the U.S. that has high blood pressure. How large a sample is needed in order to be 99% confident that the sample proportion will not differ from the tgrue proportion by more than 4%?

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