EXERCISE 1 - ANSWER

See if there is an obvious trend in the average monthly income per worker by gender, race and attitude toward the new government. (Do not include invalid answers in the table)

Since there are four variables to compare, you have to consider what kind of table would be the easiest to analyze the result. In this case, since variable for gender (gender_n) only has two values, you might want to create two separate tables of female and male using by gender_n. You should use lookfor to find out what is the variable used to see attitudes toward the new government (new_govt). Also, to exclude invalid answers, check the survey and you will find that negative numbers are invalid answers. Thus, use if new_govt>0 at the end.

lookfor government

132. new_govt byte %9.0g new_govt 8 :effect of new government

sort gender_n
by gender_n: tab race new_govt, sum(incmon) mean, if new_govt>0

-> gender_n=        F  
                        Means of monthly gross pay 
        19 |
:populatio |  8 :effect of new government
   n group |  01-bette    02-same   03-worse |     Total
-----------+---------------------------------+----------
  01-afric | 614.03448  527.96429     830.52 | 635.47857
  02-colou |     957.2       1140  918.69231 | 975.17391
  03-india | 2733.3333       1200       1750 |      2150
  04-white |      2753  3679.1429  2764.5714 | 2963.1875
-----------+---------------------------------+----------
     Total |  782.0101       1157  1545.2787 | 1090.1393 

-> gender_n=        M  
                        Means of monthly gross pay 
        19 |
:populatio |  8 :effect of new government
   n group |  01-bette    02-same   03-worse |     Total
-----------+---------------------------------+----------
  01-afric | 960.06716  581.96875    1407.12 |  955.2356
  02-colou |      1067       1159  1094.8889 |  1101.913
  03-india |      3320  2004.6667       2163 | 2330.1818
  04-white | 7266.6667   6516.875       4748 | 5712.7556
-----------+---------------------------------+----------
     Total |    1249.5  2383.5263  2654.1905 | 1816.6667 

There doesn't seem to be any clear trend in income distribution among the races and attitudes about the government by gender.