Question

A company that sells products through mail-order catalogs wants to evaluate whether the mean sales for their most recent catalog were different from the mean of $15 from past catalogs. For a random sample of 100 customers, the mean sales were $10, with a standard deviation of $10. Find a P-value to provide the extent of evidence that the mean differed with this catalog. Interpret.


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  • CreatedSeptember 11, 2015
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