Smoking.csv file:

https://drive.google.com/file/d/1ufUSziZ-L2p87e-A8qUDtI6IBi6ZzI1P/view?usp=sharing

1. Regress smoker on cubic polynomials of age, using a linear probability model. What is the p-value for testing the hypothesis that the probability model is linear in age? (two decimal places)

2. Regress smoker on quadratic polynomials of age, using a probit regression and find the p-value for testing the hypothesis that the z-valueis linear in age. (two decimal places)

3. Regress smoker on quadratic polynomials of age, using a probit regression. What is the fraction correctly predicted in percentage terms? (two decimal places - e.g., if the fraction correctly predicted is 22.35%, type 22.35 without the percentage sign).