data example4_4;
do block=1 to 10;
do treat=1 to 3;
input x @@;
output;
end;
end;
cards;
19.20	12.80	11.29
18.45	12.76	11.93
17.88	11.27	12.35
19.12	12.47	12.60
20.22	13.79	11.35
21.36	13.97	12.50
19.89	12.98	11.37
17.98	10.79	11.51
18.10	10.95	11.90
17.52	11.10	11.72
;
run;
proc univariate normal;
class treat;
var x; 
run;
proc glm data=example4_4;
class treat block;
model x=treat;
means treat/hovtest;
run;
proc glm data=example4_4;
class treat block;
model x=treat block;
lsmeans treat/adjust=dunnett tdiff;
run;
