Sample Size Dr. Paul Oswiecmiski wants to estimate the mean serum HDL cholesterol of all
Chapter 9, Problem 45(choose chapter or problem)
Sample Size Dr. Paul Oswiecmiski wants to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females within 2 points with 99% confidence assuming that s = 13.4 based on earlier studies? Suppose that Dr. Oswiecmiski would be content with 95% confidence. How does the decrease in confidence affect the sample size required?
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