A new drug to treat high cholesterol is being tested by pharmaceutical company. The cholesterol levels for 27 patients were recorded before administering the drug and after. The 99% confidence interval for the true mean difference in total cholesterol levels (after - before) was (-78.82, -31.18). Which of the following is the appropriate conclusion? Question 4 options: 1) We are 99% confident that the average difference in cholesterol levels is positive, with the higher cholesterol levels being before the drug regimen. 2) We are 99% confident that the average difference in cholesterol levels is positive, with the higher cholesterol levels being after the drug regimen. 3) We are 99% confident that the average difference in cholesterol levels is negative, with the higher cholesterol levels being before the drug regimen. 4) We are 99% confident that the average difference in cholesterol levels is negative, with the higher cholesterol levels being after the drug regimen. 5) There is not a significant difference in average cholesterol levels before and after the drug.

Answered: A new drug to treat high cholesterol is…

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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Question

A new drug to treat high cholesterol is being tested by pharmaceutical company. The cholesterol levels for 27 patients were recorded before administering the drug and after. The 99% confidence interval for the true mean difference in total cholesterol levels (after - before) was (-78.82, -31.18). Which of the following is the appropriate conclusion?

Question 4 options:

1)	We are 99% confident that the average difference in cholesterol levels is positive, with the higher cholesterol levels being before the drug regimen.

2)	We are 99% confident that the average difference in cholesterol levels is positive, with the higher cholesterol levels being after the drug regimen.

3)	We are 99% confident that the average difference in cholesterol levels is negative, with the higher cholesterol levels being before the drug regimen.

4)	We are 99% confident that the average difference in cholesterol levels is negative, with the higher cholesterol levels being after the drug regimen.