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you have a box of 12 widgets whose average weight for each individual widget is 2.6 pounds with a standard deviation of 3.3 pounds. Based on this information, what is the mean, taken to 1 decimal place, for the sample average of the weight of the widgets in the box

From your data, the mean for each widget would be 2.6 and the mean for the box would be 12*2.6 = ?

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