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5. Melanie is a researcher who wishes to estimate the mean birthweight of full-term babies in her hospital. What minimum number of babies should she

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5. Melanie is a researcher who wishes to estimate the mean birthweight of full-term babies in her hospital. What minimum number of babies should she sample if she wishes to be at least 99% condent that the mean birthweight of the sample is within 150 grams of the mean birthweight of all babies? Assume that the distribution of birthweights at her hospital is normal with a standard deviation of 600 g

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