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Ryan, Engineer

Category: Calculus and Above

Satisfied Customers: 8885

Experience: B.S. in Civil Engineering

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2- The previous study indicated that several factors may be

Customer Question

2- The previous study indicated that several factors may be risk factors for premature delivery, among them a high basal metabolic index (BMI) in the mother. Suppose BMI at 20 weeks’ gestation has a mean of µ=28.5 with a standard deviation of σ=3.6. A. Suppose the obstetrician will see 74 pregnant women over the next week; how many of them will have BMI between 25 and 30? (½ mark) B. Suppose we collect a sample of 100 pregnant women from a different antenatal care clinic, what is the probability that the sample mean for that sample is within 1 unit of the true BMI, if the standard deviation for BMI is 3.6? (½ mark)

I'm sorry for the confusion as well. There was a error in the system that prevented Mr. Glenn's initial response from showing up on my screen. If I had seen it, I would not have posted my reply to you. This has been reported to the site administrators.

Since almost an hour has passed and no solution has been posted, here is a link to the solution that I prepared for you.