According to the National Association of Theater Owners, the average price for a movie in the United

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According to the National Association of Theater Owners, the average price for a movie in the United States in 2017 was $8.97. Assume the population standard deviation is $0.50 and that a sample of 30 theaters was randomly selected.

a. Calculate the standard error of the mean.

b. What is the probability that the sample mean will be less than $8.75?

c. What is the probability that the sample mean will be less than $9.10?

d. What is the probability that the sample mean will be more than $9.20?

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Business Statistics

ISBN: 9780134685267

3rd Edition

Authors: Robert A. Donnelly

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Question Posted: Nov 05, 2019 04:28 AM

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According to the National Association of Theater Owners, the average price for a movie in the United

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