It is said that the average weight of healthy 12-hour-old infants is supposed to be 7.5 lb.

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It is said that the average weight of healthy 12-hour-old infants is supposed to be 7.5 lb. A sample of newborn babies from a low-income neighborhood yielded the following weights (in pounds) at 12 hours after birth: 

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At the 0.01 significance level, can we conclude that babies from this neighborhood are underweight?

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Statistical Methods

ISBN: 9780128230435

4th Edition

Authors: Donna L. Mohr, William J. Wilson, Rudolf J. Freund

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