Question 137992: A researcher collected sample data for 16 women ages 18 to 24. The sample had a mean serum cholestrol level of 188.8, with a standard deviaiton of 8.2. Assuming that serum cholesterol levels for women ages 18 to 24 are normally distributed find 95% confidence interval for the mean serum cholersrol level of all women in this age group, complete the table below
What is the lower limit of the confidence interval?
what is the upper limit of the confidence interval?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A researcher collected sample data for 16 women ages 18 to 24.
The sample had a mean serum cholestrol level of 188.8, with a standard deviation of 8.2.
Assuming that serum cholesterol levels for women ages 18 to 24 are normally distributed find 95% confidence interval for the mean serum cholersrol level of all women in this age group,
x-bar = 188.8
E = 2.132= 4.3706
complete the table below
What is the lower limit of the confidence interval? 188.8-4.3706 = 184.4294
what is the upper limit of the confidence interval? 188.8+4.3706 = 192.3706
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Cheers,
Stan H.
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