Question: A study was conducted to estimate the average weight at birth of babies whose mothers are consuming cocaine. Suppose that the birth weight is normally

A study was conducted to estimate the average weight at birth of babies whose mothers are consuming cocaine. Suppose that the birth weight is normally distributed with a standard deviation of 350 grams. What is the sample size required to estimate the average weight with a maximum error of 0.5 lbs at a level of confidence of 98%? Note that 1lb = 454g.

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