SOLUTION: A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measured
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Question 305696: A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measured as follows:
185 225 240 196 175 180 194 147 223
Generate a 95% confidence interval for the true mean total cholesterol level children.
How it solves with 95% formula should be?
Gloria
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measured as follows:
185 225 240 196 175 180 194 147 223
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Find the sample mean (x-bar) = 196.11
and sample standard deviation (s = 29.00
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Generate a 95% confidence interval for the true mean total cholesterol level children.
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Determine the standard error: E = (invT(0.975 with df=8)*29/sqrt(9)
= 2.306*9.667 = 22.29
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How it solves with 95% formula should be?
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95% CI:: 196.11- 29 < u < 196.11+29
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Cheers,
Stan H.
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