Consider the dataset in section 2.4. The er32049 variable is the last known marital status. Rename this variable as marstatus, give the variable the label "marital status", and tabulate marstatus. From the codebook, marital status is married
(1), never married
(2), widowed
(3), divorced or annulment
(4), separated
(5), not answered or do not know
(8), and no marital history collected
(9). Set marstatus to missing where appropriate. Use label define and label values to provide descriptions for the remaining categories, and tabulate marstatus. Create a binary indicator variable equal to 1 if the last known marital status is married, and equal to 0 otherwise, with appropriate handling of any missing data. Provide a summary of earnings by marital status. Create a set of indicator variables for marital status based on marstatus. Create a set of variables that interact these marital status indicators with earnings.