Given the following description of variables, Description Minutes of exercise per week [continuous outcome variable) Indicator that the person is male Indicator that the person is female Indicator that the person is more than 40 years old ndicator that the person is less than or equal to 40 years old ndicator that the person smokes we obtain the estimated linear regression model (Model 1) mmexi:cr0+femolei (11+ agefe 40in!2 1. How do you assess whether there is a difference between the average number of minutes of exercise per week between males and females (holding other variables constant]? 2. What is the interpretation of the estimated coefcient [21 if we assume it was signicant [pvalue