Question

Generic drug sales make up about half of all prescriptions sold in the United States. The marketing manager for a pharmaceutical company wanted to acquire core information about the sales of generic prescription drugs. To do so, she randomly sampled 475 customers who recently filled prescriptions for generic drugs and recorded the cost of each prescription. Estimate with 95% confidence the mean cost of all generic prescription drugs.



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  • CreatedFebruary 03, 2015
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