Question 12 Needs Grading For this question, when | ask 1you to interpret also describe the statistical significance of the variable in question. The data in the jtrain2 tabte comes trom ajob training experiment on men conducted during 19?6-19??. jtrainEi also comes from 19761971 re?4, re75, and re?8 denote the person's real earnings in 1974, 1975, and 1978. unem'M, unem75, and unem78 are indicator variables tor unemployment in 1974, 1975. and 1973. train is an indicator variable showing whether or not the man participated in job training {in either 1978 or 1977'}. black and hisp are dummies for race. age is a variable indicating the man's age in years in 19?. educ is a variable indicating the man's years of education. t. For the variable married in jtrain3, there are 49? missing values because the data source did not have that information on those men in 19?8. How does R deal with this issue in model 10'? Do you think this solution is acceptable for our purposes