A researcher collected sample data for 11 middle aged women The sample had a mean...
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A researcher collected sample data for 11 middle aged women The sample had a mean serum cholesterol level measured in milligrams per one hundred milliliters of 190 4 with a standard deviation of 8 1 Assuming that serum cholesterol levels for middle aged women are normally distributed find a 90 confidence interval for the mean serum cholesterol level of all women in this age group Give the lower limit and upper limit of the 90 confidence interval Carry your intermediate computations to at least three decimal places Round your answers to one decimal place If necessary consult a list of formulas Lower limit Upper limit S
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