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Plea2e show the formulas that need to be used as well as an explanation on how to apply them. In order to determine the average

Plea2e show the formulas that need to be used as well as an explanation on how to apply them.

In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 152 pieces of carry-on luggage was collected and weighed. The average weight was 37.9 pounds. Assume that we know the standard deviation of the population to be 9 pounds. Determine a 90% confidence interval estimate for the mean weight of the carry-on luggage.

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