A recent 10-year study conducted by a research team at the Medical School was co

Question

A recent 10-year study conducted by a research team at the Medical School was conducted to assess 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 interpreted as the probability (times 100) that the patient will have a stroke over the next 10-year period. For the smoking variable, define a dummy variable with 1 indicating a smoker and 0 indicating a nonsmoker.

Risk
Age Blood
Pressure
Smoker 11 58 152 Yes 24 65 163 No 13 58 155 No 56 86 177 Yes 27 59 196 Yes 51 76 189 Yes 18 56 155 Yes 31 78 120 No 37 80 135 Yes 15 78 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 34 80 125 Yes 3 62 117 No 38 59 209 Yes

Explanation / Answer

Here we need to use multiple regression.

Independent variable: Age, Blood pressure, Smoker

Dependent variable: Risk

Following is the data using yes =1 and no = 0:

Following is the output of regression analysis:

Teh requried regression model is

Risk' = -100.3623 + 1.1938Age +0.2492 Blood-pressure + 8.7150Smoker

Risk Age Blood Pressure Smoker 11 58 152 1 24 65 163 0 13 58 155 0 56 86 177 1 27 59 196 1 51 76 189 1 18 56 155 1 31 78 120 0 37 80 135 1 15 78 98 0 22 71 152 0 36 70 173 1 15 67 135 1 48 77 209 1 15 60 199 0 36 82 119 1 8 66 166 0 34 80 125 1 3 62 117 0 38 59 209 1

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.