A pharmaceutical company wishes to test a new drug with the expectation of lowering cholesterol levels. Ten subjects are randomly selected and pretested. The subjects were placed on the drug for a period of 6 months, after which their cholesterol levels were tested again. The results are listed below. (All units are mg/dL.) Test the company's claim that the drug lowers cholesterol levels. Use a = 0.01. Assume the distribution is normally distributed.

A pharmaceutical company wishes to test a new drug with the expectation of lowering cholesterol levels. Ten subjects are randomly selected and pretested. The subjects were placed on the drug for a period of 6 months, after which their cholesterol levels were tested again. The results are listed below. (All units are mg/dL.) Test the company's claim that the drug lowers cholesterol levels. Use a = 0.01. Assume the distribution is normally distributed.

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

A pharmaceutical company wishes to test a new drug with the expectation of lowering cholesterol
levels. Ten subjects are randomly selected and pretested. The subjects were placed on the drug
for a period of 6 months, after which their cholesterol levels were tested again. The results are
listed below. (All units are mg/dL.) Test the company's claim that the drug lowers cholesterol
levels. Use a
0.01. Assume the distribution is normally distributed.
Subject
1
2
3
4
8
69
10
Before
190
220
202
188
175
266
235
268
190
240
After
180
225
180
175
170
250
211
250
180
225
Null Hypothesis [Select ]
Alternative Hypothesis [Select ]
Test statistiC
[ Select ]
Critical Value
[ Select ]
Conclusion [Select ]

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