The SAS System 12:09 Wednesday, July 16, 2008 1 The Mixed Procedure Model Information Data Set WORK.INFLUENT Dependent Variable y Covariance Structure Variance Components Estimation Method REML Residual Variance Method Profile Fixed Effects SE Method Model-Based Degrees of Freedom Method Containment Class Level Information Class Levels Values type 3 1 2 3 influent 6 1 2 3 4 5 6 Dimensions Covariance Parameters 2 Columns in X 4 Columns in Z 6 Subjects 1 Max Obs Per Subject 37 Number of Observations Number of Observations Read 37 Number of Observations Used 37 Number of Observations Not Used 0 Iteration History Iteration Evaluations -2 Res Log Like Criterion 0 1 237.31810153 1 2 234.52459025 0.00000002 2 1 234.52458841 0.00000000 Convergence criteria met. Covariance Parameter Estimates Standard Z Cov Parm Estimate Error Value Pr Z Alpha Lower influent(type) 14.9702 17.5422 0.85 0.1967 0.05 3.5315 Residual 42.5136 10.7842 3.94 <.0001 0.05 27.3389 The SAS System 12:09 Wednesday, July 16, 2008 2 The Mixed Procedure Covariance Parameter Estimates Cov Parm Upper influent(type) 1947.07 Residual 75.0789 Fit Statistics -2 Res Log Likelihood 234.5 AIC (smaller is better) 238.5 AICC (smaller is better) 238.9 BIC (smaller is better) 238.1 Solution for Fixed Effects Standard Effect type Estimate Error DF t Value Pr > |t| Intercept 36.4000 4.8449 3 7.51 0.0049 type 1 -20.8000 5.9337 3 -3.51 0.0393 type 2 -16.4619 5.5168 3 -2.98 0.0584 type 3 0 . . . . Solution for Random Effects Std Err Effect type influent Estimate Pred DF t Value Pr > |t| influent(type) 1 3 0.7653 3.1932 31 0.24 0.8122 influent(type) 1 5 -0.7653 3.1932 31 -0.24 0.8122 influent(type) 2 1 1.2295 2.7593 31 0.45 0.6590 influent(type) 2 2 -4.3259 2.8007 31 -1.54 0.1326 influent(type) 2 4 3.0964 2.8314 31 1.09 0.2826 influent(type) 3 6 4.97E-14 3.8691 31 0.00 1.0000 Type 3 Tests of Fixed Effects Num Den Effect DF DF F Value Pr > F type 2 3 6.37 0.0832 Estimates Standard Label Estimate Error DF t Value Pr > |t| influent 1 20.7034 4.1423 3 5.00 0.0154 influent 2 19.1727 4.1423 3 4.63 0.0190 The SAS System 12:09 Wednesday, July 16, 2008 3 The Mixed Procedure Estimates Standard Label Estimate Error DF t Value Pr > |t| influent 3 16.8295 4.3989 3 3.83 0.0314 influent 4 15.6122 2.2137 3 7.05 0.0059 influent 5 18.6964 4.4444 3 4.21 0.0245 influent 6 36.4000 2.9159 3 12.48 0.0011 Least Squares Means Standard Effect type Estimate Error DF t Value Pr > |t| type 1 15.6000 3.4259 3 4.55 0.0198 type 2 19.9381 2.6386 3 7.56 0.0048 type 3 36.4000 4.8449 3 7.51 0.0049 Differences of Least Squares Means Standard Effect type _type Estimate Error DF t Value Pr > |t| type 1 2 -4.3381 4.3242 3 -1.00 0.3897 type 1 3 -20.8000 5.9337 3 -3.51 0.0393 type 2 3 -16.4619 5.5168 3 -2.98 0.0584