MATLAB: An Introduction with Applications
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, 45 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 3.3 and a standard deviation of 18.4. Construct a 90% 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 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?**

\[ \text{mg/dL} < \mu < \text{mg/dL} \]
(Round to two decimal places as needed.)
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Transcribed Image Text:In a test of the effectiveness of garlic for lowering cholesterol, 45 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 3.3 and a standard deviation of 18.4. Construct a 90% 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 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?** \[ \text{mg/dL} < \mu < \text{mg/dL} \] (Round to two decimal places as needed.)
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