[See Solution] A medical research worker intends to use the mean of a random sample of size n=120 to estimate the mean blood pressure of women in their
Question: A medical research worker intends to use the mean of a random sample of size n=120 to estimate the mean blood pressure of women in their fifties. The research worker takes his sample and gets the mean 141.8 mm of mercury. Construct a 98% confidence interval for the mean blood pressure of women in their fifties, if, based on experience, he knows that σ=10.5 mm of mercury.
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[Solution] The length of the skulls of 10 fossil skeletons of
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