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April 26, 2015

Homework Help: statistics

Posted by Ann on Thursday, August 14, 2008 at 12:08pm.

The head of a computer science department is interested in estimating the proportion of students
entering the department who will choose the new computer engineering option. A preliminary sample
indicates that the proportion will be around 0.25. Therefore, what size sample should the department
head take if she wants to be 95% confident that the estimate is within 0.10 of the true proportion?

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