A sample of 25 one-year-old girls had a mean weight of 24.1 pounds with a standard deviation

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A sample of 25 one-year-old girls had a mean weight of 24.1 pounds with a standard deviation of 4.3 pounds.

Assume that the population of weights is normally distributed.

A pediatrician claims that the standard deviation of the weights of one-year-old girls is less than 5 pounds. Do the data provide convincing evidence that the pediatrician’s claim is true? Use the α = 0.05 level of significance.

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 08, 2024 03:02 AM

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A sample of 25 one-year-old girls had a mean weight of 24.1 pounds with a standard deviation

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Elementary Statistics

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