jtrain98: A dataset with 1130 observations on 10 variables: train: =1 if in job training age: in years educ: years of schooling black: =1 if black hisp: =1 if Hispanic married: =1 if married earn96: earnings in 1996, $1000s unem96: =1 if unemployed all of 1995 earn98: earnings in 1998, $1000s unem98: =1 if unemployed all of 1998