researcher collected sample data for 16 women ages 18 to 24 . The sample had a mean serum cholesterol level (measured in mg/100 mL) of 192.7 , with a standard deviation of 9.2 . Assuming that serum cholesterol

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A researcher collected sample data for

16

women ages

18

to

24

. The sample had a mean serum cholesterol level (measured in mg/100 mL) of

192.7

, with a standard deviation of

9.2

. Assuming that serum cholesterol levels for women ages

18

to

24

are normally distributed, find a

90%

confidence interval for the mean serum cholesterol level of all women in this age group. Then find 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.

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