You may need to use the appropriate appendix table or technology to answer this question. In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 70 pieces of carry on luggage was collected and weighed. The average weight was 29.5 pounds. Assume that we know the standard deviation of the population to be 3.25 pounds. Also, assume the population is normally distributed. (Round your answers to three decimal places) (4) Determine a 99% confidence interval estimate for the population means weight (in pounds) of the carry-on luggage pounds to pounds (b) Determine a 95% confidence interval estimate for the population mean weight (in pounds) of the carry-on luggage pounds to pounds

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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You may need to use the appropriate appendix table or technology to answer this question.
In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 70 pieces of carry-on luggage was collected and weighed. The average weight
was 20.5 pounds. Assume that we know the standard deviation of the population to be 3.25 pounds. Also, assume the population is normally distributed. (Round your answers to
three decimal places)
(a) Determine a 99% confidence interval estimate for the population mean weight (in pounds) of the carry-on luggage
pounds to
pounds
(b) Determine a 95% confidence interval estimate for the population mean weight (in pounds) of the carry-on luggage
pounds
pounds to
Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 70 pieces of carry-on luggage was collected and weighed. The average weight was 20.5 pounds. Assume that we know the standard deviation of the population to be 3.25 pounds. Also, assume the population is normally distributed. (Round your answers to three decimal places) (a) Determine a 99% confidence interval estimate for the population mean weight (in pounds) of the carry-on luggage pounds to pounds (b) Determine a 95% confidence interval estimate for the population mean weight (in pounds) of the carry-on luggage pounds pounds to
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