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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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RENCEE72 RENCEE72
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6 years ago
In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of 25 pieces of carry-on luggage was collected and weighed. The average weight was 18 pounds. Assume that we know the standard deviation of the population to be 7.5 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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kimmazkimmaz
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6 years ago
this is exactly what I needed
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This helped my grade so much Perfect
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