Question: Problem 1.60 Refer to the data in Problem 1.18. (a) Compare the lead levels in the blood of the exposed and control groups of children

Problem 1.60 Refer to the data in Problem 1.18.

(a) Compare the lead levels in the blood of the exposed and control groups of children by computing the sample mean, sample variance and sample standard deviation of the amount of lead in the blood of both groups.

(b) What inferences can you draw from this comparison?

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