options nocenter ps=35 ls=72;

data example;
  input batch percent;
  cards;
   1 74
   1 76
   1 75
   2 68
   2 71
   2 72
   3 75
   3 77
   3 77
   4 72
   4 74
   4 73
   5 79
   5 81
   5 79
 ;

proc glm;
 class batch;
 model percent=batch;
 random batch;
 output out=diag r=res p=pred;

 proc plot;
 plot res*pred;

proc varcomp method=type1;
 class batch;
 model percent = batch;

proc mixed cl;
 class batch;
 model percent = ;
 random batch;
run;