octor wants to estimate the mean trigliceride level of all 20- to 29-year-old females (in milligram per deciliter, mg/dL). How many subjects are needed to estimate the mean trigliceride level within 4 mg/dL with 95% confidence assuming s=16.2 mg/dL from an earlier study? The doctor needs to sample at least ??  20- to 29-year-old females.

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A doctor wants to estimate the mean trigliceride level of all 20- to 29-year-old females (in milligram per deciliter, mg/dL). How many subjects are needed to estimate the mean trigliceride level within 4 mg/dL with 95% confidence assuming s=16.2 mg/dL from an earlier study?

The doctor needs to sample at least ??  20- to 29-year-old females.

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