Question The problem requires the use of gretl. Please show all regression output that helped you reached your estimated regression equation. Please show all script utilized as well - for example in the case of forward selection methods. Dan is starting preliminary research on joblessness and he has asked for your help in developing a model. He provides you with data on variables that may be related to the number of weeks a person has been jobless due to a layoff (Dataset: Layoffs). The dependent variable is Weeks - defined as the number of weeks a person has been jobless due to a layoff. The following independent variables are described below Variable Description Age The age of the person Educ The number of years of education Married A dummy variable ; 1 if married ; 0 otherwise Head A dummy variable; 1 if the head of household; 0 otherwise Tenure The number of years on the previous job Manager A dummy variable; 1 if management occupation, 0 otherwise Sales A dummy variable ; 1 if sales occupation, 0 otherwise a) Develop the best one-variable estimated regression equation b) Use the backward elimination procedure to develop the best estimated regression equation. Use a = 0.05 c) Use the forward selection procedure to develop the best estimated regression equation. Use a = 0.05