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Ryan, Engineer
Category: Calculus and Above
Satisfied Customers: 9060
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)
Submitted: 10 months ago.
Category: Calculus and Above
Expert:  Mr. Glenn replied 10 months ago.


Thank you for using this site. When is the deadline of this home work? Please reply.

Expert:  Ryan replied 10 months ago.


Thank you for using the site. I'll be happy to help you with this problem. I'll have a solution posted for you as soon as I get it typed up.



Expert:  Mr. Glenn replied 10 months ago.
Is this the complete set of questions?
Expert:  Ryan replied 10 months ago.

Hi again,

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.


Please let me know if you have any questions about the solutions, or if you have any difficulty accessing the file.

If there is anything else that I can do to help, please do not hesitate to ask.