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October 21, 2014

Homework Help: statistics - please help

Posted by cm on Tuesday, May 8, 2012 at 8:21pm.

A researcher wishes to be 95% confident that her estimate of the population proportion of individuals who travel overseas is within 4% of the true proportion. Find the sample size necessary. In a prior study, a sample of 200 people showed that 80 traveled overseas last year.

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