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Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke Prevention Study asked whether adding another anticlotting drug named dipyridamole would make a difference for patients who had already had a stroke. Here are the data on strokes during the two years of the study: Aspirin alone Apsirin & Dipyridamole Number of Patients This test is two-tailed. What is the test statistic? 0.665 200 = V 200 Is there a significant difference in the proportion of strokes in the two groups? Test at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. #v Fill in the hypotheses below where p₁ denotes the proportion of patients in the aspirin group who suffere a stroke and på denotes the proportion of patients in the aspirin & dipyridamole group who suffered a stroke. Ho: P. Ha: P₁ Number of Strokes P₂ 60 P₂ 54 Using your answer from the previous question, find the p-value. ▼ Part 2 Part 3

Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke Prevention Study asked whether adding another anticlotting drug named dipyridamole would make a difference for patients who had already had a stroke. Here are the data on strokes during the two years of the study: Aspirin alone Apsirin & Dipyridamole Number of Patients This test is two-tailed. What is the test statistic? 0.665 200 = V 200 Is there a significant difference in the proportion of strokes in the two groups? Test at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. #v Fill in the hypotheses below where p₁ denotes the proportion of patients in the aspirin group who suffere a stroke and på denotes the proportion of patients in the aspirin & dipyridamole group who suffered a stroke. Ho: P. Ha: P₁ Number of Strokes P₂ 60 P₂ 54 Using your answer from the previous question, find the p-value. ▼ Part 2 Part 3

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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**Aspirin and Stroke Prevention Study** Aspirin is known to prevent blood clots and help in reducing the risk of strokes. The Second European Stroke Prevention Study investigated if adding the anticlotting drug dipyridamole would benefit patients who had experienced a stroke. The study's results over two years are summarized below: | Treatment Group | Number of Patients | Number of Strokes | |----------------------------------|--------------------|-------------------| | Aspirin alone | 200 | 60 | | Aspirin & Dipyridamole | 200 | 54 | **Research Question:** Is there a significant difference in the proportion of strokes between the two groups? The significance level is set at α = 0.10. Answers are rounded to three decimal places, with interim calculations to four decimal places. **Hypotheses:** - Null Hypothesis (\( H_0 \)): \( p_1 = p_2 \) \( p_1 \) = proportion of patients in the aspirin group with strokes \( p_2 \) = proportion of patients in the aspirin & dipyridamole group with strokes - Alternative Hypothesis (\( H_a \)): \( p_1 \neq p_2 \) The test conducted is two-tailed. **Calculated Test Statistic:** The test statistic value is 0.665. **Request:** Using the test statistic provided, calculate the p-value to determine the significance of the results.
Transcribed Image Text:**Aspirin and Stroke Prevention Study** Aspirin is known to prevent blood clots and help in reducing the risk of strokes. The Second European Stroke Prevention Study investigated if adding the anticlotting drug dipyridamole would benefit patients who had experienced a stroke. The study's results over two years are summarized below: | Treatment Group | Number of Patients | Number of Strokes | |----------------------------------|--------------------|-------------------| | Aspirin alone | 200 | 60 | | Aspirin & Dipyridamole | 200 | 54 | **Research Question:** Is there a significant difference in the proportion of strokes between the two groups? The significance level is set at α = 0.10. Answers are rounded to three decimal places, with interim calculations to four decimal places. **Hypotheses:** - Null Hypothesis (\( H_0 \)): \( p_1 = p_2 \) \( p_1 \) = proportion of patients in the aspirin group with strokes \( p_2 \) = proportion of patients in the aspirin & dipyridamole group with strokes - Alternative Hypothesis (\( H_a \)): \( p_1 \neq p_2 \) The test conducted is two-tailed. **Calculated Test Statistic:** The test statistic value is 0.665. **Request:** Using the test statistic provided, calculate the p-value to determine the significance of the results.
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