data paper;
input temp @;
do rep=1 to 3;
  do method=1 to 3;
     input strength @;
     output;
  end;
end;
datalines;
200 30 34 29 28 31 31 31 35 32
225 35 41 26 32 36 30 37 40 34
250 37 38 33 40 42 32 41 39 39
275 36 42 36 41 40 40 40 44 45
;