The SAS System 1 08:34 Monday, March 11, 2013 The GLM Procedure Class Level Information Class Levels Values level 2 high low source 3 beef cereal pork Number of Observations Read 60 Number of Observations Used 60 The SAS System 2 08:34 Monday, March 11, 2013 The GLM Procedure Dependent Variable: gain Sum of Source DF Squares Mean Square F Value Model 5 4612.93333 922.58667 4.30 Error 54 11586.00000 214.55556 Corrected Total 59 16198.93333 Source Pr > F Model 0.0023 Error Corrected Total R-Square Coeff Var Root MSE gain Mean 0.284768 16.67039 14.64772 87.86667 Source DF Type I SS Mean Square F Value level 1 3168.266667 3168.266667 14.77 source 2 266.533333 133.266667 0.62 level*source 2 1178.133333 589.066667 2.75 Source Pr > F level 0.0003 source 0.5411 level*source 0.0732 Source DF Type II SS Mean Square F Value level 1 3168.266667 3168.266667 14.77 source 2 266.533333 133.266667 0.62 level*source 2 1178.133333 589.066667 2.75 Source Pr > F level 0.0003 source 0.5411 level*source 0.0732 The SAS System 3 08:34 Monday, March 11, 2013 The GLM Procedure Class Level Information Class Levels Values level 2 high low source 3 beef cereal pork Number of Observations Read 60 Number of Observations Used 60 The SAS System 4 08:34 Monday, March 11, 2013 The GLM Procedure Dependent Variable: gain Sum of Source DF Squares Mean Square F Value Model 6 467846.0000 77974.3333 363.42 Error 54 11586.0000 214.5556 Uncorrected Total 60 479432.0000 Source Pr > F Model <.0001 Error Uncorrected Total R-Square Coeff Var Root MSE gain Mean 0.284768 16.67039 14.64772 87.86667 Source DF Type I SS Mean Square F Value level*source 6 467846.0000 77974.3333 363.42 Source Pr > F level*source <.0001 Source DF Type II SS Mean Square F Value level*source 6 467846.0000 77974.3333 363.42 Source Pr > F level*source <.0001 Contrast DF Contrast SS Mean Square F Value int1: beef vs pork 1 0.000000 0.000000 0.00 int2: cereal vs meat 1 1178.133333 1178.133333 5.49 level main 1 3168.266667 3168.266667 14.77 Contrast Pr > F int1: beef vs pork 1.0000 int2: cereal vs meat 0.0228 level main 0.0003 The SAS System 5 08:34 Monday, March 11, 2013 The GLM Procedure Dependent Variable: gain Contrast DF Contrast SS Mean Square F Value source main 2 266.533333 133.266667 0.62 interaction 2 1178.133333 589.066667 2.75 Contrast Pr > F source main 0.5411 interaction 0.0732 Standard Parameter Estimate Error t Value Pr > |t| hi vs low: beef 20.8000000 6.55065730 3.18 0.0025 hi vs low: cereal 2.0000000 6.55065730 0.31 0.7613 hi vs low: pork 20.8000000 6.55065730 3.18 0.0025 beef vs pork: hi 0.5000000 6.55065730 0.08 0.9394 cereal vs meat: hi -13.8500000 5.67303564 -2.44 0.0179 beef vs pork: low 0.5000000 6.55065730 0.08 0.9394 cereal vs meat: low 4.9500000 5.67303564 0.87 0.3868 int1: beef vs pork 0.0000000 9.26402840 0.00 1.0000 int2: cereal vs meat -18.8000000 8.02288394 -2.34 0.0228 hi vs low: animal 20.8000000 4.63201420 4.49 <.0001 Parameter 95% Confidence Limits hi vs low: beef 7.6667228 33.9332772 hi vs low: cereal -11.1332772 15.1332772 hi vs low: pork 7.6667228 33.9332772 beef vs pork: hi -12.6332772 13.6332772 cereal vs meat: hi -25.2237516 -2.4762484 beef vs pork: low -12.6332772 13.6332772 cereal vs meat: low -6.4237516 16.3237516 int1: beef vs pork -18.5732587 18.5732587 int2: cereal vs meat -34.8849138 -2.7150862 hi vs low: animal 11.5133707 30.0866293 Standard Parameter Estimate Error t Value Pr > |t| level*source high beef 100.0000000 4.63201420 21.59 <.0001 level*source high cereal 85.9000000 4.63201420 18.54 <.0001 level*source high pork 99.5000000 4.63201420 21.48 <.0001 Parameter 95% Confidence Limits level*source high beef 90.7133707 109.2866293 level*source high cereal 76.6133707 95.1866293 level*source high pork 90.2133707 108.7866293 The SAS System 6 08:34 Monday, March 11, 2013 The GLM Procedure Dependent Variable: gain Standard Parameter Estimate Error t Value Pr > |t| level*source low beef 79.2000000 4.63201420 17.10 <.0001 level*source low cereal 83.9000000 4.63201420 18.11 <.0001 level*source low pork 78.7000000 4.63201420 16.99 <.0001 Parameter 95% Confidence Limits level*source low beef 69.9133707 88.4866293 level*source low cereal 74.6133707 93.1866293 level*source low pork 69.4133707 87.9866293 interaction plots 7 08:34 Monday, March 11, 2013 Plot of mean*level. Symbol is value of source. mean | | 100.0 + b | p | | | 97.5 + | | | | 95.0 + | | | | 92.5 + | | | | 90.0 + | | | | 87.5 + | | | c | 85.0 + | | c | | 82.5 + | | | | 80.0 + | | b | p | 77.5 + | ---+------------------------------------------+-- high low level interaction plots 8 08:34 Monday, March 11, 2013 Plot of mean*source. Symbol is value of level. mean | | 100.0 + h | h | | | 97.5 + | | | | 95.0 + | | | | 92.5 + | | | | 90.0 + | | | | 87.5 + | | | h | 85.0 + | | l | | 82.5 + | | | | 80.0 + | | l | l | 77.5 + | ---+----------------------+----------------------+-- beef cereal pork source