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A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL
A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99%
confidence assuming s=19.6 based on earlier studies? Suppose the doctor would be content with
95% confidence. How does the decrease in confidence affect the sample size required?
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Part 1
A 99% confidence level requires enter your response here subjects. (Round up to the nearest subject.)
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