how age blood pressure and smoking relate to the risk of str

how age, blood pressure, and smoking relate to the risk of strokes regression results pertain to data on the following. art Association provided data on . Assume that the have a stroke over the next 10-year 6.8 A 10-year study conducted by the American Heart Association Risk: the probability that the patient will have a stroke over t period Age: age of the person Pressure: blood pressure Family: number of strokes the person\'s parents have had The partial Excel results are shown here ANOVA df MS F Significance F Regression Residual Total 3 3660.74 1220.25 36.82 2.06E-07 16 A 33.14 530.21 4190.95 19 t Stat p-value Standard Error 15.22 0.17 0.05 Coefficients Intercept Age Pressure Family -91.76 1.08 0.25 8.74 5T 2. 113 a. What is the R2 of the regression model? What does it mean? b. What is the standard error of the regression? What does it mean? c. Explain in the context of this problem what the numbers for the following coef- bernean TS d. Test the overall significance of the e. Is pressure statistically significant in explaining risk? Test this hy f. Find a 95 percent confidence interval for age. What does this inte g. Estimate the risk of a heart attack for a person who is 70 yearso h. Can you see a potential problem with predicting using this regression ficients mean: Age, Pressure, Family. level· 45 10 percent significance level. what parameter does it bracket? pressure of 165, and whose parents have had one stroke. regression model at a 5 percent significance Test this hypothesis at a at does this interval mean, and n who is 70 years old, with a blod laining risk? 6.9 You are trying to You are trying to determine how th square foota ssion model?

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