A clinical trial is investigating the effectiveness of a new pain reliever drug. 40 people with chronic lower back pain were recruited to the study. 20 participants were assigned to take the drug and 20 participants were assigned a placebo. The participants did not know whether they were assigned the drug or the placebo. After an hour, the participants were asked to report how nuch pain they were experiencing on a scale from 1 to 10 with one being little pain and 10 being the worst pain. The summarized results are shown below. Using the 5% significance level, what do you conclude about the effectiveness of the new drug? New Drug Placebo 3.8 6.5 dard Deviation 1.9 2.1

A clinical trial is investigating the effectiveness of a new pain reliever drug. 40 people with chronic lower back pain were recruited to the study. 20 participants were assigned to take the drug and 20 participants were assigned a placebo. The participants did not know whether they were assigned the drug or the placebo. After an hour, the participants were asked to report how nuch pain they were experiencing on a scale from 1 to 10 with one being little pain and 10 being the worst pain. The summarized results are shown below. Using the 5% significance level, what do you conclude about the effectiveness of the new drug? New Drug Placebo 3.8 6.5 dard Deviation 1.9 2.1

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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Does more education lower a person’s level of prejudice? The number of years of education and the score on a prejudice test for ten people is given in the following table. Higher scores on the test indicate more prejudice. Years of Education: 12, 15, 14, 13, 18, 10, 16, 12, 10, 4 Score of Prejudice Test: 1, 6, 2, 3, 2, 4, 1, 5, 5, 10 Conduct a hypothesis test to determine if there is a significant linear correlation between the two variables. If there is a significant linear correlation between the variables, determine the regression equation. There is a significant correlation between the variables and the regression equation is y' = 10.5 - 0.532x There is a significant correlation between the variables and the regression equation is y' = - 0.532 + 10.5x There is not a significant correlation between the variables, so the regression equation should not be determined. There is a significant correlation between the variables and the regression equation is y' = 16.509 - 1.054x
What is Importance of the Standard Error in hypothesis testing?
In this case, p-value is greater. So null hypothesis should not be rejected, correct?
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