Project #89109 - statistics

A researcher wishes to estimate the percentage of adults in favor of abolishing the penny. What size zample should be obtained if he wishes the estimate to be within 4 percentage points with 90% confidence if

A). he uses a previous estimate of 25%?

B). He does not use any prior estimates

Subject Mathematics
Due By (Pacific Time) 10/25/2015 02:43 pm
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