Cholesterol levels are measured as followed 185 225 240 196, Ask an Expert

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A study is run to estimate the mean total cholesterol level in children 2 to 6 yrs of age. A sample of 9 particpants is selected and their total cholesterol levels are measured as followed: 185 225 240 196 175 180 194 147 223. Generate a 95% confidence interval for the true mean total cholesterol levels in children?

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