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Confidence with a standard deviation

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Reference no: EM132027058

A doctor wants to estimate the HDL cholesterol of all 20 to 20 year old females.How many subjects are needed within 3 points with a 99% confidence with a standard deviation of 12.3?

A 99%confidence level requires how many subjects?

A 90% confidence level requires how many subjects?

Reference no: EM132027058

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