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What would be the value of the test statistic for the correct hypothesis test indicated in the scenario of problem 20 using a nondirectional alternative hypothesis and a = 0.01? (Round your answer to the nearest whole number, if necessary)

What would be the value of the test statistic for the correct hypothesis test indicated in the scenario of problem 20 using a nondirectional alternative hypothesis and a = 0.01? (Round your answer to the nearest whole number, if necessary)

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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Xarelto is a drug that can be used as a blood thinner for patients who have a pulmonary embolism or other blood clotting condition. Researchers wanted to determine if there was a difference in blood viscosity (measured in mPA S) that might be attributed to the drug. In a study, a random sample of 7 patients who had a family history of blood clotting disorders were treated with Xarelto for two months. Their blood viscosity was measured before and after the treatment. The data are shown the table below: Blood Viscocity (mPA. S) Patient 1 2 3 4 5 6 7 y S Before 6.7 7.1 5.6 6.9 7.5 6.8 5.7 6.61 0.71 After 4.3 4.6 6.7 4.4 6.0 4.9 5.8 5.24 0.92 Difference After - Before -2.4 -2.5 1.1 -2.5 -1.5 -1.9 -0.1 -1.37 1.42
Transcribed Image Text:Xarelto is a drug that can be used as a blood thinner for patients who have a pulmonary embolism or other blood clotting condition. Researchers wanted to determine if there was a difference in blood viscosity (measured in mPA S) that might be attributed to the drug. In a study, a random sample of 7 patients who had a family history of blood clotting disorders were treated with Xarelto for two months. Their blood viscosity was measured before and after the treatment. The data are shown the table below: Blood Viscocity (mPA. S) Patient 1 2 3 4 5 6 7 y S Before 6.7 7.1 5.6 6.9 7.5 6.8 5.7 6.61 0.71 After 4.3 4.6 6.7 4.4 6.0 4.9 5.8 5.24 0.92 Difference After - Before -2.4 -2.5 1.1 -2.5 -1.5 -1.9 -0.1 -1.37 1.42
What would be the value of the test statistic for the correct hypothesis test indicated in the scenario of problem 20 using a nondirectional alternative hypothesis and a = 0.01? (Round your answer to the nearest whole number, if necessary)
Transcribed Image Text:What would be the value of the test statistic for the correct hypothesis test indicated in the scenario of problem 20 using a nondirectional alternative hypothesis and a = 0.01? (Round your answer to the nearest whole number, if necessary)
Expert Solution
Step 1

Given that 

Difference mean =-1.37

Standard deviation =1.42(difference)

We have to find the test statistic

 

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