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A 10 year study conducted by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes. Assume that the following data are from a portion of this study. Risk is interpretted as the probability (times 100) that the patient will have a stroke over the next 10-year period. Risk Age Pressure Smoker 12 57 152 No 24 67 163 No 13 58 155 No 56 86 177 Yes 28 59 196 189 No 51 76 Yes 18 56 155 Yes 31 78 120 No 37 80 78 135 Yes 15 98 No 22 71 152 No 36 70 173 Yes 15 67 135 Yes 48 77 209 Yes 15 60 199 No 36 82 119 Yes 8 66 166 No A. Develop an estimated regression equation that relates risk of a stroke to the person's age, blood pressure, and whether the person is a smoker. B. What is the R* value for the regression equation that you developed? Is there a statistically significant relationship between these factors and the risk of stroke? What is the F statistic and p(F) ? C. Is smoking a significant factor in the risk of a stroke ? Using a = .05 justify your answer. D. Are age and blood pressure also significant facors in the risk of stroke? Using a - .05 justify your answer. E. What is the probability of a strike over the next 10 years for a person 68 years old with a blood pressure of 175 and who is a smoker? Plot Area

A 10 year study conducted by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes. Assume that the following data are from a portion of this study. Risk is interpretted as the probability (times 100) that the patient will have a stroke over the next 10-year period. Risk Age Pressure Smoker 12 57 152 No 24 67 163 No 13 58 155 No 56 86 177 Yes 28 59 196 189 No 51 76 Yes 18 56 155 Yes 31 78 120 No 37 80 78 135 Yes 15 98 No 22 71 152 No 36 70 173 Yes 15 67 135 Yes 48 77 209 Yes 15 60 199 No 36 82 119 Yes 8 66 166 No A. Develop an estimated regression equation that relates risk of a stroke to the person's age, blood pressure, and whether the person is a smoker. B. What is the R* value for the regression equation that you developed? Is there a statistically significant relationship between these factors and the risk of stroke? What is the F statistic and p(F) ? C. Is smoking a significant factor in the risk of a stroke ? Using a = .05 justify your answer. D. Are age and blood pressure also significant facors in the risk of stroke? Using a - .05 justify your answer. E. What is the probability of a strike over the next 10 years for a person 68 years old with a blood pressure of 175 and who is a smoker? Plot Area

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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AutoSave Assignment 3 - Excel P Search 困 ff Emerson Oakes EO File Home Insert Page Layout Formulas Data Review View Help 8 Share P Comments А34 fe H J K L M N O P Q B S I U V W X Y A B 1 Assignment 3 2 Problem #4 E F G Z AA 3 A 10 year study conducted by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes. 4 Assume that the following data are from a portion of this study. Risk is interpretted as the probability (times 100) that the patient will have a stroke over the next 10-year period. 5 6 Risk Age Pressure Smoker 8 12 57 152 No 24 67 163 No 10 13 58 155 No 11 56 86 177 Yes 12 28 59 196 No 13 51 76 189 Yes 14 18 56 155 Yes 15 31 78 120 No 16 37 80 135 Yes 17 15 78 98 No 18 22 71 152 No 19 36 70 173 Yes 20 15 67 135 Yes 21 48 77 209 Yes 22 15 60 199 No 23 36 82 119 Yes 24 8 66 166 No 25 A. Develop an estimated regression equation that relates risk of a stroke to the person's age, blood pressure, and whether the person is a smoker. B. What is the R? value for the regression equation that you developed? Is there a statistically significant relationship between these 26 27 factors and the risk of stroke? What is the F statistic and p(F) ? X os 28 C. Is smoking a significant factor in the risk of a stroke ? Using a = .05 justify your answer. 29 30 D. Are age and blood pressure also significant facors in the risk of stroke? Using a = .05 justify your answer. く 31 E. What is the probability of a strike over the next 10 years for a person 68 years old with a blood pressure of 175 and who is a smoker? 32 Plot Area 33 O 4) 34 35 36 8:33 PM 37 38 2/27/2021 Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 + Ready 囲 62% H Q O i C E O E O
Transcribed Image Text:AutoSave Assignment 3 - Excel P Search 困 ff Emerson Oakes EO File Home Insert Page Layout Formulas Data Review View Help 8 Share P Comments А34 fe H J K L M N O P Q B S I U V W X Y A B 1 Assignment 3 2 Problem #4 E F G Z AA 3 A 10 year study conducted by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes. 4 Assume that the following data are from a portion of this study. Risk is interpretted as the probability (times 100) that the patient will have a stroke over the next 10-year period. 5 6 Risk Age Pressure Smoker 8 12 57 152 No 24 67 163 No 10 13 58 155 No 11 56 86 177 Yes 12 28 59 196 No 13 51 76 189 Yes 14 18 56 155 Yes 15 31 78 120 No 16 37 80 135 Yes 17 15 78 98 No 18 22 71 152 No 19 36 70 173 Yes 20 15 67 135 Yes 21 48 77 209 Yes 22 15 60 199 No 23 36 82 119 Yes 24 8 66 166 No 25 A. Develop an estimated regression equation that relates risk of a stroke to the person's age, blood pressure, and whether the person is a smoker. B. What is the R? value for the regression equation that you developed? Is there a statistically significant relationship between these 26 27 factors and the risk of stroke? What is the F statistic and p(F) ? X os 28 C. Is smoking a significant factor in the risk of a stroke ? Using a = .05 justify your answer. 29 30 D. Are age and blood pressure also significant facors in the risk of stroke? Using a = .05 justify your answer. く 31 E. What is the probability of a strike over the next 10 years for a person 68 years old with a blood pressure of 175 and who is a smoker? 32 Plot Area 33 O 4) 34 35 36 8:33 PM 37 38 2/27/2021 Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 + Ready 囲 62% H Q O i C E O E O
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