. Run the reduced model (that now includes only three independant variavles), and show the prediction equation. e. Interpret the coefficient of the predictor "Smoker" in this model. What does its value mean in this model? f. A smoker, whose both parents passed at the age of 85, is 62 years old. How many more years is he expected to live? g. His friend is not a smoker who lost his mother when she was 70 years old, and father when he was 60 years old. How long is he expected to live? h. Can you determine with 90% confidence which of the two friends will die at a younger age?