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14. A pharmaceutical company is testing a new drug that is supposed to lower cholesterol levels. Ten volunteers participate in a 3 month study that compares their cholesterol level before and after the 3 month treatment. The results are below. Units of measure are mg/dL. Initial Level 210 200 215 194 206 221 203 189 208 211 Level after 3 months 201 195 208 197 200 203 190 188 210 210

14. A pharmaceutical company is testing a new drug that is supposed to lower cholesterol levels. Ten volunteers participate in a 3 month study that compares their cholesterol level before and after the 3 month treatment. The results are below. Units of measure are mg/dL. Initial Level 210 200 215 194 206 221 203 189 208 211 Level after 3 months 201 195 208 197 200 203 190 188 210 210

MATLAB: An Introduction with Applications
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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a. Construct a 95% confidence interval for the true mean decrease in cholesterol levels for people who take the drug treatment for 3 months. For credit, your work must include a filled out formula for your confidence interval.

b. After the study was completed, the pharmaceutical company claims that the cholesterol levels have decreased. Does this confidence interval contradict this claim? Explain why.

14. A pharmaceutical company is testing a new drug that is supposed to lower cholesterol levels. Ten volunteers participate in a 3 month study that compares their cholesterol level before and after the 3 month treatment. The results are below. Units of measure are mg/dL. Initial Level 210 200 215 194 206 221 203 189 208 211 Level after 3 months 201 195 208 197 200 203 190 188 210 210
Transcribed Image Text:14. A pharmaceutical company is testing a new drug that is supposed to lower cholesterol levels. Ten volunteers participate in a 3 month study that compares their cholesterol level before and after the 3 month treatment. The results are below. Units of measure are mg/dL. Initial Level 210 200 215 194 206 221 203 189 208 211 Level after 3 months 201 195 208 197 200 203 190 188 210 210
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