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A doctor wants to estimate the mean HDL cholesterol of all 20 to 29 year...

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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 14 2 based on earlier studies Suppose the doctor would be content with 95 confidence How does the decrease in confidence affect the sample size required Click the icon to view a partial table of critical values A 99 confidence level requires subjects Round up to the nearest subject

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