Repeat Exercise 21 using a 99% confidence interval. Exercise 21 In a random sample of 28 sports

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Repeat Exercise 21 using a 99% confidence interval.

Exercise 21

In a random sample of 28 sports cars, the average annual fuel cost was $2929 and the standard deviation was $786. Construct a 90% confidence interval for μ. Interpret the results. Assume the annual fuel costs are normally distributed.

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 07:54 AM

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Repeat Exercise 21 using a 99% confidence interval. Exercise 21 In a random sample of 28 sports

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x t c s n 2929 2771 786 28 2929 411...View the full answer

Elementary Statistics Picturing The World

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