Please Use SAS Program

2. (a) Merge the data sets Ql_A and Q1_B to the data set Q1_ALL. (Hint: the variable names of male and female variable in two data sets are different.) (6) Using QI_ALL, create a new data set named QI_FINAL containing two more variables AGE and GROUP (Old or Young). Calculate the ages of subjects on 03/01/2011. Depending on the AGE, determine the value of GROUP: if AGE>60, then the value of GROUP is 'Old; if AGE60, then the value of GROUP is 'Old; if AGE