According to Deadline.com, the average price for a movie ticket in 2018 was $8.97. A random sample

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According to Deadline.com, the average price for a movie ticket in 2018 was $8.97. A random sample of movie prices in the San Francisco Bay Area 25 movie ticket prices had a sample mean of $12.27 with a standard deviation of $3.36.

a. Do we have evidence that the price of a movie ticket in the San Francisco Bay Area is different from the national average? Use a significance level of 0.05.

b. Construct a 95% confidence interval for the price of a movie ticket in the San Francisco Bay Area. How does your confidence interval support your conclusion in part a?

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Introductory Statistics Exploring The World Through Data

ISBN: 9780135163146

3rd Edition

Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan

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