A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many
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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 cholesterol within 2 points with \(99 \%\) confidence assuming \(s=11.2\) based on earlier studies? Suppose the doctor would be content with \(90 \%\) confidence. How does the decrease in confidence affect the sample size required?
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For a 99 confidence level n20...View the full answer
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Related Book For 
Statistics Informed Decisions Using Data
ISBN: 9781292157115
5th Global Edition
Authors: Michael Sullivan
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