The SAS System

The GLM Procedure

Class Level Information
Class Levels Values
brand 2 1 2
form 3 1 2 3

Number of Observations Read 24
Number of Observations Used 24


The SAS System

The GLM Procedure
 
Dependent Variable: clrchng

Source DF Sum of Squares Mean Square F Value Pr > F
Model 5 1728.750738 345.750148 62.48 <.0001
Error 18 99.613825 5.534101    
Corrected Total 23 1828.364563      

R-Square Coeff Var Root MSE clrchng Mean
0.945518 12.80864 2.352467 18.36625

Source DF Type I SS Mean Square F Value Pr > F
brand 1 1422.498038 1422.498038 257.04 <.0001
form 2 254.484675 127.242338 22.99 <.0001
brand*form 2 51.768025 25.884013 4.68 0.0231

Source DF Type III SS Mean Square F Value Pr > F
brand 1 1422.498038 1422.498038 257.04 <.0001
form 2 254.484675 127.242338 22.99 <.0001
brand*form 2 51.768025 25.884013 4.68 0.0231

Parameter Estimate   Standard Error t Value Pr > |t|
Intercept 24.49750000 B 1.17623354 20.83 <.0001
brand 1 -15.39750000 B 1.66344543 -9.26 <.0001
brand 2 0.00000000 B . . .
form 1 7.90000000 B 1.66344543 4.75 0.0002
form 2 -3.19750000 B 1.66344543 -1.92 0.0706
form 3 0.00000000 B . . .
brand*form 1 1 -3.59750000 B 2.35246709 -1.53 0.1436
brand*form 1 2 3.59750000 B 2.35246709 1.53 0.1436
brand*form 1 3 0.00000000 B . . .
brand*form 2 1 0.00000000 B . . .
brand*form 2 2 0.00000000 B . . .
brand*form 2 3 0.00000000 B . . .


Note: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.