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 3 mg/dL with 95% confidence assuming s=17.1 mg/dL from an earlier study? 20- to 29-year-old females. The doctor needs to sample at least Question Help: Video Calculator Submit Question

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