Compute average birth weight for babies born to smokers

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Question: In the Missouri study, the average birth weight for babies born to smokers is 3180 grams and the SD 500 grams, and for nonsmokers the average is 3500 grams and the SD 500 grams. Consider a baby who is born to a smoker. If the baby's weight is 2 SDs below average weighs, then the baby weighs grams. Suppose another baby weighs this same number of grams, but is born to a nonsmoker. This baby has a weight that falls SDs below the average of its group. According to the normal approximation, approximately what percentage of babies born to nonsmokers are below this weight?

Reference no: EM131768335

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