MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic in a processed
tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their
levels of LDL cholesterol (in mg/dL) have a mean of 4.4 and a standard deviation of 19.4. Construct a 95%
confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the
confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol?
Click here to view at distribution table
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
St
What is the confidence interval estimate of the population mean u?
mg/dL «u
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