1. (40 points) Suppose that an extensive study is carried out, and it is found that in a particular country, the life expectancy among non-smoking women who don't eat any vegetables is 80 years. Suppose further that on the average, men live 5 years less. Also take the numbers mentioned above: every cigarette per day reduces the life expectancy by half a year, and a handful of veggies per day increases it by one year. Calculate the life expectancies for the following cases: For example, the first case is a male (subtract 5 years), smokes 8 cigarettes per day (subtract 8 x 0.5 = 4 years), and eats two handfuls of veggies per day (add 2 x 1 = 2 years), so the predicted life expectancy is 80 - 5 - 4+2 = 73 years. Smoking (cigarettes Vegetables (handfuls Life expectancy Gender per day) per day) (years) male 8 2 73 male 0 6 A female 16 B female 0 4 a. Enter the correct value as an integer (whole number) for the missing sections A, B, and C. above. A-81 B=73 C-84 b. Let YLife expectancy (years); X1-Gender, 1 male and female; X2 Smoking (cigarettes per day); X3 Vegetables (handfuls per day). Please write down the regression model to predict the life expectancy