You are asked to develop a multiple regression model that indicates the relationship between a person's behavioral characteristics and the quality of diet consumed as measured by the Healthy Eating Index (HEI-2005). The predictor variables to be used are whether subject limited weight (sr did lm wt), whether the subject was a smoker (smoker), number of hours subject spent in front of a TV or computer screen (screen hours), sedentary versus active subject (activity level; note you will need to recode to a dummy variable), percent of subject's calories from a fast-food restaurant (pff), percent of subject's calories eaten at home (P ate at Home), whether subject was a college graduate (col grad), and subject's household income (hh income est). Also, the model should include a dummy variable to indicate the effect of first versus second interview.
a. Estimate the model using the basic specification variables indicated here.
b. Estimate the model again. but in this case include a variable that adjusts for immigrant versus native person (immigrant).
c. Estimate the model again, but in this case include a variable that adjusts for single status versus a person with a partner (single).
d. Estimate the model again, but in this case include a variable that adjusts for participation in the food stamp program (fsp).