In Order to Determine the Average Weight of Carry-On Luggage

question 37

Essay

In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 16 pieces of carry-on luggage was weighed.The average weight was 20 pounds.Assume that we know the standard deviation of the population to be 8 pounds.Also, assume the population is normally distributed.
a.
Determine a 97% confidence interval estimate for the population mean weight of the carry-on luggage.
b.
Determine a 95% confidence interval estimate for the population mean weight of the carry-on luggage.

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