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a nation-wide (U.S) donut chain determined that its stores sells an average of 256 donuts per day with a standard deviation of 36 donuts.

a nation-wide (U.S) donut chain determined that its stores sells an average of 256 donuts per day with a standard deviation of 36 donuts.If a sample of 16 stores results in a sample average of 249 donuts what is the standard error of the mean?

This question was asked on Jan 18, 2013.

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