data dummy;
input group y;
if group=1 then x1=1;
if group ne 1 then x1=0;
if group=2 then x2=1;
if group ne 2 then x2=0;
cards;
1 4
1 5
1 6
1 7
1 8
2 7
2 8
2 9
2 10
2 11
3 1
3 2
3 3
3 4
3 5
;
proc reg;
model y=x1 x2 / adjrsq stb;
The SAS System 19:12 Wednesday, December 22, 1999 1
Model: MODEL1
Dependent Variable: Y
Analysis of Variance
Sum of Mean
Source DF Squares Square F Value Prob>F
Model 2 90.00000 45.00000 18.000 0.0002
Error 12 30.00000 2.50000
C Total 14 120.00000
Root MSE 1.58114 R-square 0.7500
Dep Mean 6.00000 Adj R-sq 0.7083
C.V. 26.35231
Parameter Estimates
Parameter Standard T for H0:
Variable DF Estimate Error Parameter=0 Prob > |T|
INTERCEP 1 3.000000 0.70710678 4.243 0.0011
X1 1 3.000000 1.00000000 3.000 0.0111
X2 1 6.000000 1.00000000 6.000 0.0001
Standardized
Variable DF Estimate
INTERCEP 1 0.00000000
X1 1 0.50000000
X2 1 1.00000000