The prices of a random sample of 23 new smartphones have a sample standard deviation of $1,200.

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The prices of a random sample of 23 new smartphones have a sample standard deviation of $1,200. Use an 80% level of confidence.

Assume the sample is from a normally distributed population and construct the indicated confidence intervals for

(a) the population variance σ²

(b) the population standard deviation σ. Interpret the results.

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Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

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Question Posted: Apr 29, 2024 05:01 AM

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The prices of a random sample of 23 new smartphones have a sample standard deviation of $1,200.

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Elementary Statistics Picturing The World

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