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Question: using the simple random sample of weights of women from...

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Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics:

nequals=40 and x overbarxequals148.51

lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigmaσequals=32.92 lb.

a. Find the best point estimate of the mean weight of all women.

b. Find a 90​%

confidence interval estimate of the mean weight of all women.

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a. The best point estimate is

lb.

​(Type an integer or a​ decimal.)

b. The 90​%

confidence interval estimate is

lbless than<muμless than<

lb.

​(Round to two decimal places as​ needed.)

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