A pharmaceutical company needs to know if its new cholesterol drug. Praxor, is effective at lowering cholesterol levels. It believes that people who take Praxor will average a greater decrease in cholesterol level than people taking a placebo. After the experiment is complete, the researchers find that the 41 participants in the treatment group lowered their cholesterol levels by a mean of 22.1 points with a standard deviation of 4.8 points. The 49 participants in the control group lowered their cholesterol levels by a mean of 19.9 points with a standard deviation of 4.3 points. Assume that the population variances are not equal and test the company's claim at the 0.05 level. Let the treatment group be Population 1 and let the control group be Population 2. Step 3 of 3: Draw a conclusion and interpret the decision. Answer 囲Tables E Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo.
A pharmaceutical company needs to know if its new cholesterol drug. Praxor, is effective at lowering cholesterol levels. It believes that people who take Praxor will average a greater decrease in cholesterol level than people taking a placebo. After the experiment is complete, the researchers find that the 41 participants in the treatment group lowered their cholesterol levels by a mean of 22.1 points with a standard deviation of 4.8 points. The 49 participants in the control group lowered their cholesterol levels by a mean of 19.9 points with a standard deviation of 4.3 points. Assume that the population variances are not equal and test the company's claim at the 0.05 level. Let the treatment group be Population 1 and let the control group be Population 2. Step 3 of 3: Draw a conclusion and interpret the decision. Answer 囲Tables E Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug will average a greater decrease in cholesterol level than people taking a placebo.
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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Transcribed Image Text:A pharmaceutical company needs to know if its new cholesterol drug, Praxor, is effective at lowering cholesterol levels. It believes that people who take Praxor will
average a greater decrease in cholesterol level than people taking a placebo. After the experiment is complete, the researchers find that the 41 participants in the
treatment group lowered their cholesterol levels by a mean of 22.1 points with a standard deviation of 4.8 points. The 49 participants in the control group lowered their
cholesterol levels by a mean of 19.9 points with a standard deviation of 4.3 points. Assume that the population variances are not equal and test the company's claim at
the 0.05 level. Let the treatment group be Population 1 and let the control group be Population 2.
Step 3 of 3: Draw a conclusion and interpret the decision.
Answer
E Tables
E Keypad
Keyboard Shortcuts
We reject the null hypothesis and conclude that there is insufficient evidence at a 0.05 level of significance to support the company's claim that people who take the
drug will average a greater decrease in cholesterol level than people taking a placebo.
We reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the drug
will average a greater decrease in cholesterol level than people taking a placebo.
We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.05 level of significance to support the company's claim that people who take the
drug will average a greater decrease in cholesterol level than people taking a placebo.
We fail to reject the null hypothesis and conclude that
the drug will average a greater decrease in cholesterol level than people taking a placebo.
is insufficient evidence at a 0.05 level of significance to support the company's claim that people who
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