options ls=75 nocenter;
data one;
   input y smoking;
   cards; 
133  1
128  1
136  1
135  1
131  1
131  1
130  1
131  1
131  1
132  1
147  1
106  0
85  0
84  0
95  0
104  0
79  0
72  0
115  0
95  0
;
proc mixed;
   class smoking;
   model y=smoking;
   repeated / group=smoking;
run;