**Stroke Prevention and Treatment Efficacy**Individuals who have experienced a stroke are at an increased risk of having another stroke. Prevention is particularly important for high-risk populations. The Second European Stroke Prevention Study examined whether daily doses of an anti-blood-clotting agent, such as aspirin or dipyridamole, would help prevent strokes among patients who had just experienced a first stroke. **Study Design and Question**Volunteer patients were randomly assigned to one of four treatment options:1. Placebo2. Aspirin3. Dipyridamole (Dipy.)4. Both drugs combinedResearchers recorded the patients who had another stroke and specifically noted if they died from that second stroke. The objective is to conduct the chi-square test of independence to determine treatment efficacy.**Data**| Treatment | Died from 2nd stroke | Did not die from 2nd stroke ||-------------|----------------------|-----------------------------|| Placebo | 202 | 1447 || Aspirin | 182 | 1467 || Dipyridamole| 188 | 1466 || Both drugs | 185 | 1465 |**Decision Making**Using the chi-square test of independence, determine which hypothesis is to be accepted:- \( \text{Reject } H_0 \) (Hypothesis of independence is not valid)- \( \text{Fail to reject } H_0 \) (Hypothesis of independence is valid)The decision requires statistical calculation not shown in the table.**Conclusion**Using the data and statistical tests, interpret the effectiveness of treatments in reducing mortality from a second stroke.

Name: **Stroke Prevention and Treatment Efficacy**Individuals who have expe
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Description: **Stroke Prevention and Treatment Efficacy**Individuals who have experienced a stroke are at an increased risk of having another stroke. Prevention is particularly important for high-risk populations. The Second European Stroke Prevention Study exam

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Individuals who have experienced a stroke are at an increased risk of having another stroke. Prevention is particularly important for high-risk populations. The Second European Stroke Prevention Study asked whether daily doses of an anti- blood-clotting agent, such as aspirin or dipyridamole, would help prevent strokes among patients who had just experienced a first stroke. Volunteer patients were randomly assigned to one of four treatment options: placebo, aspirin, Dipy., Both drugs. Researchers then recorded the patients who had another stroke and specifically if they died from that second stroke or not. Conduct the chi-square te of independence. What decision is made?

Individuals who have experienced a stroke are at an increased risk of having another stroke. Prevention is particularly important for high-risk populations. The Second European Stroke Prevention Study asked whether daily doses of an anti- blood-clotting agent, such as aspirin or dipyridamole, would help prevent strokes among patients who had just experienced a first stroke. Volunteer patients were randomly assigned to one of four treatment options: placebo, aspirin, Dipy., Both drugs. Researchers then recorded the patients who had another stroke and specifically if they died from that second stroke or not. Conduct the chi-square te of independence. What decision is made?

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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