Dr. Paul Oswiecmiski wants to estimate the mean serum HDL cholesterol of all 20- to 29-year-old females.
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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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For 99 confidence 2 z 2576 and which we must increase to ...View the full answer
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