Mathematics, 15.04.2020 02:09 JuanTorres7
In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 36 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.
assume for part be that we do not kow the standard deviation. a determine a 95% confidence interval estimate for the mean weight fo the carry-on luggage. b determine the 97% confidence interval
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