Question: The data ser lowbwt contains information recorded for a sample of 100 low birth weight infants born in two eaching hospitals in Boston, Massachusetts [81].

The data ser lowbwt contains information recorded for a sample of 100 low birth weight infants born in two eaching hospitals in Boston, Massachusetts [81]. Measurements of systolic blood pressure are saved under the variable name sbp, while indicators of sex- where 1 represents a male and O a female-are saved under the name sex.

(a) Compute a 95% confidence interval for the true mean systolic blood pressure of male low birth weight infants.

(b) Calculate a 95% confidence interval for the true mean systolic blood pressure of female low birth weight infants.

(c) Do you think it is possible that males and females have the same mean systolic blood pressure? Explain briefly.

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