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A recent 10-year study conducted by a research team at the Great Falls Medical Schoal was conducted to assess how age, systolic 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 Systolic Blood Smoker 152 163 155 65 13 No 196 189 155 120 135 98 152 173 135 27 51 18 37 15 71 15 15 199 119 166 No 36 (a) Develop an estimated multiple regression equation that relates risk of a stroke to the person's age, systolic blood pressure, and whether the person is a smaker Let xi represent the person's age Let x2 represent the person's systolic blood pressure. Let xs represent whether the person is a smoker. If required round your answers to three dec mal places. For subtractive or negative numbers use rr nus so n even if tere s a + sgn before he blank Example: 300 X2+ (b) Is smoking a significant factor in the risk of a stroke? Explain. Use a 0.05 level of significance. The Input In the box below will not be graded, but may be revlewed and considered by your Instructor. (c) What is the probabillty of a stroke over the next 10 years for rt Speen, a 65-year-old smoker who has a systolic blood pressure of 171? If required, round your answer to two decimal places, Do not rcund intermediate calculations What action might the physician recommend for this patient? The input in the box below will not be graded, but may be reviewed and considered by your instructor. d) An insurance oor pary will only se l its Select policy to people for whom the probability of a stroke in the next tcn years s less than 01 lf smoker with systolic blood pressure of 230 applies or Sciect policy, under what condition will the company sell hirm the policy if it adheres to this standard? (e) What other factors could be included in the model as independent variables? Chaase the correct answer below. () Famly History of Stroke () weight/obeslty (iii) Gender (iv) All of the above Select your answer- A recent 10-year study conducted by a research team at the Great Falls Medical Schoal was conducted to assess how age, systolic 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 Systolic Blood Smoker 152 163 155 65 13 No 196 189 155 120 135 98 152 173 135 27 51 18 37 15 71 15 15 199 119 166 No 36 (a) Develop an estimated multiple regression equation that relates risk of a stroke to the person's age, systolic blood pressure, and whether the person is a smaker Let xi represent the person's age Let x2 represent the person's systolic blood pressure. Let xs represent whether the person is a smoker. If required round your answers to three dec mal places. For subtractive or negative numbers use rr nus so n even if tere s a + sgn before he blank Example: 300 X2+ (b) Is smoking a significant factor in the risk of a stroke? Explain. Use a 0.05 level of significance. The Input In the box below will not be graded, but may be revlewed and considered by your Instructor. (c) What is the probabillty of a stroke over the next 10 years for rt Speen, a 65-year-old smoker who has a systolic blood pressure of 171? If required, round your answer to two decimal places, Do not rcund intermediate calculations What action might the physician recommend for this patient? The input in the box below will not be graded, but may be reviewed and considered by your instructor. d) An insurance oor pary will only se l its Select policy to people for whom the probability of a stroke in the next tcn years s less than 01 lf smoker with systolic blood pressure of 230 applies or Sciect policy, under what condition will the company sell hirm the policy if it adheres to this standard? (e) What other factors could be included in the model as independent variables? Chaase the correct answer below. () Famly History of Stroke () weight/obeslty (iii) Gender (iv) All of the above Select your

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