In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic in a processedtablet form. Cholesterol levels were measured before and after the treatment. The changes (before-after) in theirlevels of LDL cholesterol (in mg/dL) have a mean of 4.9 and a standard deviation of 15.7. Construct a 90%confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment.Click here to view a t 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.What is the confidence interval estimate of the population mean µ?mg/dL <μ< mg/dL<µ<(Round to two decimal places as needed.)

The sample size is 44, the mean is 4.9 and the standard deviation is 15.7.

Answered: In a test of the effectiveness of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a test of the effectiveness of garlic for lowering cholesterol, 36subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.3 and a standard deviation of 2.39. Use a 0.01 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
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