Question
5) Find the 90% confidence interval for the mean number of pieces of junk mail received per week in the U.S. if a random sample
5) Find the 90% confidence interval for the mean number of pieces of junk mail received per week in the U.S. if a random sample of 1200 homes has a mean of 15.4 pieces. Assume the population standard deviation is 2.3 pieces. Interpret your answer.
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Path To College Mathematics (Subscription)
Authors: Elayn Martin Gay
1st Edition
0134654560, 9780134654560
