OBS SEQ PERIOD TRT CARRY LA LB LC WPCARRY Y PERSON 1 1 1 A 0 0 0 0 AB 20.1 1 2 1 1 A 0 0 0 0 AB 23.3 2 3 1 1 A 0 0 0 0 AB 23.4 3 4 1 1 A 0 0 0 0 AB 19.7 4 5 1 1 A 0 0 0 0 AB 19.2 5 6 1 1 A 0 0 0 0 AB 22.2 6 7 1 2 B A 1 0 0 AB 20.3 1 8 1 2 B A 1 0 0 AB 24.8 2 9 1 2 B A 1 0 0 AB 24.8 3 10 1 2 B A 1 0 0 AB 21.3 4 11 1 2 B A 1 0 0 AB 20.9 5 12 1 2 B A 1 0 0 AB 22.0 6 13 1 3 C B 0 1 0 AB 25.6 1 14 1 3 C B 0 1 0 AB 28.7 2 15 1 3 C B 0 1 0 AB 28.3 3 16 1 3 C B 0 1 0 AB 25.7 4 17 1 3 C B 0 1 0 AB 25.9 5 18 1 3 C B 0 1 0 AB 26.2 6 19 2 1 A 0 0 0 0 AC 24.7 1 20 2 1 A 0 0 0 0 AC 23.8 2 21 2 1 A 0 0 0 0 AC 23.6 3 22 2 1 A 0 0 0 0 AC 20.2 4 23 2 1 A 0 0 0 0 AC 19.8 5 24 2 1 A 0 0 0 0 AC 21.5 6 25 2 2 C A 1 0 0 AC 29.4 1 26 2 2 C A 1 0 0 AC 28.7 2 27 2 2 C A 1 0 0 AC 26.4 3 28 2 2 C A 1 0 0 AC 26.2 4 29 2 2 C A 1 0 0 AC 23.7 5 30 2 2 C A 1 0 0 AC 25.5 6 31 2 3 B C 0 0 1 AC 27.5 1 32 2 3 B C 0 0 1 AC 24.1 2 33 2 3 B C 0 0 1 AC 25.0 3 34 2 3 B C 0 0 1 AC 21.4 4 35 2 3 B C 0 0 1 AC 23.3 5 36 2 3 B C 0 0 1 AC 20.8 6 37 3 1 B 0 0 0 0 AB 24.3 1 38 3 1 B 0 0 0 0 AB 26.4 2 39 3 1 B 0 0 0 0 AB 19.9 3 40 3 1 B 0 0 0 0 AB 23.9 4 41 3 1 B 0 0 0 0 AB 20.5 5 42 3 1 B 0 0 0 0 AB 21.8 6 43 3 2 A B 0 1 0 AB 23.2 1 44 3 2 A B 0 1 0 AB 26.4 2 45 3 2 A B 0 1 0 AB 23.7 3 46 3 2 A B 0 1 0 AB 26.8 4 OBS SEQ PERIOD TRT CARRY LA LB LC WPCARRY Y PERSON 47 3 2 A B 0 1 0 AB 23.2 5 48 3 2 A B 0 1 0 AB 23.6 6 49 3 3 C A 1 0 0 AB 30.1 1 50 3 3 C A 1 0 0 AB 32.3 2 51 3 3 C A 1 0 0 AB 25.7 3 52 3 3 C A 1 0 0 AB 30.8 4 53 3 3 C A 1 0 0 AB 26.3 5 54 3 3 C A 1 0 0 AB 29.1 6 55 4 1 B 0 0 0 0 BC 20.9 1 56 4 1 B 0 0 0 0 BC 21.9 2 57 4 1 B 0 0 0 0 BC 22.0 3 58 4 1 B 0 0 0 0 BC 23.3 4 59 4 1 B 0 0 0 0 BC 18.8 5 60 4 1 B 0 0 0 0 BC 24.6 6 61 4 2 C B 0 1 0 BC 27.5 1 62 4 2 C B 0 1 0 BC 28.6 2 63 4 2 C B 0 1 0 BC 27.4 3 64 4 2 C B 0 1 0 BC 30.7 4 65 4 2 C B 0 1 0 BC 27.9 5 66 4 2 C B 0 1 0 BC 29.8 6 67 4 3 A C 0 0 1 BC 24.3 1 68 4 3 A C 0 0 1 BC 23.1 2 69 4 3 A C 0 0 1 BC 24.5 3 70 4 3 A C 0 0 1 BC 26.6 4 71 4 3 A C 0 0 1 BC 24.6 5 72 4 3 A C 0 0 1 BC 26.6 6 73 5 1 C 0 0 0 0 AC 24.0 1 74 5 1 C 0 0 0 0 AC 25.9 2 75 5 1 C 0 0 0 0 AC 25.5 3 76 5 1 C 0 0 0 0 AC 27.9 4 77 5 1 C 0 0 0 0 AC 25.3 5 78 5 1 C 0 0 0 0 AC 25.7 6 79 5 2 A C 0 0 1 AC 21.8 1 80 5 2 A C 0 0 1 AC 23.7 2 81 5 2 A C 0 0 1 AC 22.0 3 82 5 2 A C 0 0 1 AC 25.4 4 83 5 2 A C 0 0 1 AC 26.4 5 84 5 2 A C 0 0 1 AC 24.7 6 85 5 3 B A 1 0 0 AC 21.6 1 86 5 3 B A 1 0 0 AC 23.9 2 87 5 3 B A 1 0 0 AC 23.4 3 88 5 3 B A 1 0 0 AC 24.4 4 89 5 3 B A 1 0 0 AC 25.8 5 90 5 3 B A 1 0 0 AC 24.9 6 91 6 1 C 0 0 0 0 BC 23.2 1 92 6 1 C 0 0 0 0 BC 23.9 2 OBS SEQ PERIOD TRT CARRY LA LB LC WPCARRY Y PERSON 93 6 1 C 0 0 0 0 BC 28.0 3 94 6 1 C 0 0 0 0 BC 24.6 4 95 6 1 C 0 0 0 0 BC 27.7 5 96 6 1 C 0 0 0 0 BC 21.5 6 97 6 2 B C 0 0 1 BC 18.9 1 98 6 2 B C 0 0 1 BC 21.5 2 99 6 2 B C 0 0 1 BC 25.3 3 100 6 2 B C 0 0 1 BC 22.7 4 101 6 2 B C 0 0 1 BC 23.5 5 102 6 2 B C 0 0 1 BC 18.1 6 103 6 3 A B 0 1 0 BC 23.8 1 104 6 3 A B 0 1 0 BC 25.4 2 105 6 3 A B 0 1 0 BC 28.1 3 106 6 3 A B 0 1 0 BC 23.8 4 107 6 3 A B 0 1 0 BC 25.6 5 108 6 3 A B 0 1 0 BC 22.8 6 General Linear Models Procedure Class Level Information Class Levels Values SEQ 6 1 2 3 4 5 6 WPCARRY 3 AB AC BC TRT 3 A B C PERIOD 3 1 2 3 CARRY 4 0 A B C PERSON 6 1 2 3 4 5 6 Number of observations in data set = 108 General Linear Models Procedure Dependent Variable: Y Sum of Mean Source DF Squares Square F Value Pr > F Model 41 822.84532407 20.06939815 20.12 0.0001 Error 66 65.83875000 0.99755682 Corrected Total 107 888.68407407 R-Square C.V. Root MSE Y Mean 0.925914 4.086218 0.9987777 24.442593 Source DF Type I SS Mean Square F Value Pr > F PERSON(SEQ) 35 360.41740741 10.29764021 10.32 0.0001 TRT 2 350.96907407 175.48453704 175.91 0.0001 PERIOD 2 107.08962963 53.54481481 53.68 0.0001 CARRY 2 4.36921296 2.18460648 2.19 0.1200 Source DF Type III SS Mean Square F Value Pr > F PERSON(SEQ) 35 360.85436111 10.31012460 10.34 0.0001 TRT 2 250.67502778 125.33751389 125.64 0.0001 PERIOD 1 15.30888889 15.30888889 15.35 0.0002 CARRY 2 4.36921296 2.18460648 2.19 0.1200 T for H0: Pr > |T| Std Error of Parameter Estimate Parameter=0 Estimate INTERCEPT 23.89722222 B 36.46 0.0001 0.65536526 PERSON(SEQ) 1 1 1.04375000 B 1.27 0.2097 0.82394953 2 1 4.64375000 B 5.64 0.0001 0.82394953 3 1 4.54375000 B 5.51 0.0001 0.82394953 4 1 1.27708333 B 1.55 0.1259 0.82394953 5 1 1.04375000 B 1.27 0.2097 0.82394953 6 1 2.51041667 B 3.05 0.0033 0.82394953 1 2 6.48680556 B 7.87 0.0001 0.82394953 2 2 4.82013889 B 5.85 0.0001 0.82394953 3 2 4.28680556 B 5.20 0.0001 0.82394953 4 2 1.88680556 B 2.29 0.0252 0.82394953 5 2 1.55347222 B 1.89 0.0638 0.82394953 General Linear Models Procedure Dependent Variable: Y T for H0: Pr > |T| Std Error of Parameter Estimate Parameter=0 Estimate PERSON(SEQ) 6 2 1.88680556 B 2.29 0.0252 0.82394953 1 3 4.91041667 B 5.96 0.0001 0.82394953 2 3 7.41041667 B 8.99 0.0001 0.82394953 3 3 2.14375000 B 2.60 0.0114 0.82394953 4 3 6.21041667 B 7.54 0.0001 0.82394953 5 3 2.37708333 B 2.88 0.0053 0.82394953 6 3 3.87708333 B 4.71 0.0001 0.82394953 1 4 3.43333333 B 4.21 0.0001 0.81549855 2 4 3.73333333 B 4.58 0.0001 0.81549855 3 4 3.83333333 B 4.70 0.0001 0.81549855 4 4 6.06666667 B 7.44 0.0001 0.81549855 5 4 2.96666667 B 3.64 0.0005 0.81549855 6 4 6.20000000 B 7.60 0.0001 0.81549855 1 5 1.75347222 B 2.13 0.0371 0.82394953 2 5 3.78680556 B 4.60 0.0001 0.82394953 3 5 2.92013889 B 3.54 0.0007 0.82394953 4 5 5.18680556 B 6.30 0.0001 0.82394953 5 5 5.12013889 B 6.21 0.0001 0.82394953 6 5 4.38680556 B 5.32 0.0001 0.82394953 1 6 1.16666667 B 1.43 0.1573 0.81549855 2 6 2.80000000 B 3.43 0.0010 0.81549855 3 6 6.33333333 B 7.77 0.0001 0.81549855 4 6 2.90000000 B 3.56 0.0007 0.81549855 5 6 4.80000000 B 5.89 0.0001 0.81549855 6 6 0.00000000 B . . . TRT A -3.12430556 B -11.87 0.0001 0.26320102 B -3.95694444 B -15.03 0.0001 0.26320102 C 0.00000000 B . . . PERIOD 1 -2.01736111 B -6.48 0.0001 0.31142365 2 -0.92222222 B -3.92 0.0002 0.23541415 3 0.00000000 B . . . CARRY 0 0.00000000 B . . . A 0.46875000 B 1.33 0.1889 0.35312123 B 0.72916667 B 2.06 0.0429 0.35312123 C 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. Estimates followed by the letter 'B' are biased, and are not unique estimators of the parameters. General Linear Models Procedure Least Squares Means TRT Y LSMEAN A Non-est B Non-est C Non-est PERIOD Y LSMEAN 1 Non-est 2 Non-est 3 Non-est The MIXED Procedure Class Level Information Class Levels Values TRT 3 A B C WPCARRY 3 AB AC BC SEQ 6 1 2 3 4 5 6 PERIOD 3 1 2 3 CARRY 4 0 A B C PERSON 6 1 2 3 4 5 6 REML Estimation Iteration History Iteration Evaluations Objective Criterion 0 1 268.24723206 1 2 203.82556790 0.00000894 2 1 203.82464788 0.00000000 Convergence criteria met. Covariance Parameter Estimates (REML) Cov Parm Ratio Estimate Std Error Z Pr > |Z| PERSON(SEQ) 3.11950612 3.10988701 0.82479791 3.77 0.0002 Residual 1.00000000 0.99691646 0.17342309 5.75 0.0001 Model Fitting Information for Y Description Value Observations 108.0000 Variance Estimate 0.9969 Standard Deviation Estimate 0.9985 REML Log Likelihood -194.725 Akaike's Information Criterion -196.725 Schwarz's Bayesian Criterion -199.340 -2 REML Log Likelihood 389.4502 Tests of Fixed Effects Source NDF DDF Type III F Pr > F TRT 2 66.7 126.61 0.0001 PERIOD 1 66.1 15.36 0.0002 CARRY 2 69.2 2.16 0.1226 Least Squares Means Level LSMEAN Std Error DDF T Pr > |T| TRT A . . . . . TRT B . . . . . TRT C . . . . . CARRY 0 . . . . . CARRY A . . . . . CARRY B . . . . . CARRY C . . . . . Differences of Least Squares Means Level 1 Level 2 Difference Std Error DDF T Pr > |T| TRT A TRT B . . . . . TRT A TRT C . . . . . TRT B TRT C . . . . . CARRY 0 CARRY A . . . . . CARRY 0 CARRY B . . . . . CARRY 0 CARRY C . . . . . CARRY A CARRY B . . . . . CARRY A CARRY C . . . . . CARRY B CARRY C . . . . . The MIXED Procedure Class Level Information Class Levels Values SEQ 6 1 2 3 4 5 6 WPCARRY 3 AB AC BC TRT 3 A B C PERIOD 3 1 2 3 PERSON 6 1 2 3 4 5 6 REML Estimation Iteration History Iteration Evaluations Objective Criterion 0 1 268.24723206 1 2 203.82556790 0.00000894 2 1 203.82464788 0.00000000 Convergence criteria met. Covariance Parameter Estimates (REML) Cov Parm Ratio Estimate Std Error Z Pr > |Z| PERSON(SEQ) 3.11950612 3.10988701 0.82479791 3.77 0.0002 Residual 1.00000000 0.99691646 0.17342309 5.75 0.0001 Model Fitting Information for Y Description Value Observations 108.0000 Variance Estimate 0.9969 Standard Deviation Estimate 0.9985 REML Log Likelihood -194.725 Akaike's Information Criterion -196.725 Schwarz's Bayesian Criterion -199.340 -2 REML Log Likelihood 389.4502 Tests of Fixed Effects Source NDF DDF Type III F Pr > F TRT 2 66.7 126.61 0.0001 LA 0 . . . LB 0 . . . LC 0 . . . PERIOD 1 66.1 15.36 0.0002 Least Squares Means Level LSMEAN Std Error DDF T Pr > |T| TRT A 23.67713264 0.34436095 52.1 68.76 0.0001 TRT B 22.84480469 0.34436095 52.1 66.34 0.0001 TRT C 26.80584045 0.34436095 52.1 77.84 0.0001 PERIOD 1 . . . . . PERIOD 2 . . . . . PERIOD 3 . . . . . Differences of Least Squares Means Level 1 Level 2 Difference Std Error DDF T Pr > |T| TRT A TRT B 0.83232795 0.26249574 66.7 3.17 0.0023 TRT A TRT C -3.12870781 0.26249574 66.7 -11.92 0.0001 TRT B TRT C -3.96103576 0.26249574 66.7 -15.09 0.0001 PERIOD 1 PERIOD 2 . . . . . PERIOD 1 PERIOD 3 . . . . . PERIOD 2 PERIOD 3 . . . . . General Linear Models Procedure Class Level Information Class Levels Values SEQ 6 1 2 3 4 5 6 WPCARRY 3 AB AC BC TRT 3 A B C PERIOD 3 1 2 3 CARRY 4 0 A B C PERSON 6 1 2 3 4 5 6 Number of observations in data set = 108 General Linear Models Procedure Dependent Variable: Y Sum of Mean Source DF Squares Square F Value Pr > F Model 41 822.84532407 20.06939815 20.12 0.0001 Error 66 65.83875000 0.99755682 Corrected Total 107 888.68407407 R-Square C.V. Root MSE Y Mean 0.925914 4.086218 0.9987777 24.442593 Source DF Type I SS Mean Square F Value Pr > F WPCARRY 2 0.18907407 0.09453704 0.09 0.9097 PERSON(SEQ*WPCARRY) 33 360.22833333 10.91601010 10.94 0.0001 TRT 2 350.96907407 175.48453704 175.91 0.0001 PERIOD 2 107.08962963 53.54481481 53.68 0.0001 CARRY 2 4.36921296 2.18460648 2.19 0.1200 Source DF Type III SS Mean Square F Value Pr > F WPCARRY 2 0.62602778 0.31301389 0.31 0.7318 PERSON(SEQ*WPCARRY) 33 360.22833333 10.91601010 10.94 0.0001 TRT 2 250.67502778 125.33751389 125.64 0.0001 PERIOD 1 15.30888889 15.30888889 15.35 0.0002 CARRY 2 4.36921296 2.18460648 2.19 0.1200 T for H0: Pr > |T| Std Error of Parameter Estimate Parameter=0 Estimate INTERCEPT 23.89722222 B 36.46 0.0001 0.65536526 WPCARRY AB 3.87708333 B 4.71 0.0001 0.82394953 AC 4.38680556 B 5.32 0.0001 0.82394953 BC 0.00000000 B . . . PERSON(SEQ*WPCARRY) 1 1 AB -2.83333333 B -3.47 0.0009 0.81549855 2 1 AB 0.76666667 B 0.94 0.3506 0.81549855 3 1 AB 0.66666667 B 0.82 0.4166 0.81549855 General Linear Models Procedure Dependent Variable: Y T for H0: Pr > |T| Std Error of Parameter Estimate Parameter=0 Estimate PERSON(SEQ*WPCARRY) 4 1 AB -2.60000000 B -3.19 0.0022 0.81549855 5 1 AB -2.83333333 B -3.47 0.0009 0.81549855 6 1 AB -1.36666667 B -1.68 0.0985 0.81549855 1 2 AC 2.10000000 B 2.58 0.0123 0.81549855 2 2 AC 0.43333333 B 0.53 0.5969 0.81549855 3 2 AC -0.10000000 B -0.12 0.9028 0.81549855 4 2 AC -2.50000000 B -3.07 0.0031 0.81549855 5 2 AC -2.83333333 B -3.47 0.0009 0.81549855 6 2 AC -2.50000000 B -3.07 0.0031 0.81549855 1 3 AB 1.03333333 B 1.27 0.2096 0.81549855 2 3 AB 3.53333333 B 4.33 0.0001 0.81549855 3 3 AB -1.73333333 B -2.13 0.0373 0.81549855 4 3 AB 2.33333333 B 2.86 0.0056 0.81549855 5 3 AB -1.50000000 B -1.84 0.0704 0.81549855 6 3 AB 0.00000000 B . . . 1 4 BC 3.43333333 B 4.21 0.0001 0.81549855 2 4 BC 3.73333333 B 4.58 0.0001 0.81549855 3 4 BC 3.83333333 B 4.70 0.0001 0.81549855 4 4 BC 6.06666667 B 7.44 0.0001 0.81549855 5 4 BC 2.96666667 B 3.64 0.0005 0.81549855 General Linear Models Procedure Dependent Variable: Y T for H0: Pr > |T| Std Error of Parameter Estimate Parameter=0 Estimate PERSON(SEQ*WPCARRY) 6 4 BC 6.20000000 B 7.60 0.0001 0.81549855 1 5 AC -2.63333333 B -3.23 0.0019 0.81549855 2 5 AC -0.60000000 B -0.74 0.4645 0.81549855 3 5 AC -1.46666667 B -1.80 0.0767 0.81549855 4 5 AC 0.80000000 B 0.98 0.3302 0.81549855 5 5 AC 0.73333333 B 0.90 0.3718 0.81549855 6 5 AC 0.00000000 B . . . 1 6 BC 1.16666667 B 1.43 0.1573 0.81549855 2 6 BC 2.80000000 B 3.43 0.0010 0.81549855 3 6 BC 6.33333333 B 7.77 0.0001 0.81549855 4 6 BC 2.90000000 B 3.56 0.0007 0.81549855 5 6 BC 4.80000000 B 5.89 0.0001 0.81549855 6 6 BC 0.00000000 B . . . TRT A -3.12430556 B -11.87 0.0001 0.26320102 B -3.95694444 B -15.03 0.0001 0.26320102 C 0.00000000 B . . . PERIOD 1 -2.01736111 B -6.48 0.0001 0.31142365 2 -0.92222222 B -3.92 0.0002 0.23541415 3 0.00000000 B . . . CARRY 0 0.00000000 B . . . A 0.46875000 B 1.33 0.1889 0.35312123 B 0.72916667 B 2.06 0.0429 0.35312123 C 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. Estimates followed by the letter 'B' are biased, and are not unique estimators of the parameters. General Linear Models Procedure Least Squares Means TRT Y LSMEAN A Non-est B Non-est C Non-est PERIOD Y LSMEAN 1 Non-est 2 Non-est 3 Non-est The MIXED Procedure Class Level Information Class Levels Values TRT 3 A B C WPCARRY 3 AB AC BC SEQ 6 1 2 3 4 5 6 PERIOD 3 1 2 3 CARRY 4 0 A B C PERSON 6 1 2 3 4 5 6 REML Estimation Iteration History Iteration Evaluations Objective Criterion 0 1 270.82219183 1 1 205.05013327 0.00000000 Convergence criteria met. Covariance Parameter Estimates (REML) Cov Parm Ratio Estimate Std Error Z PERSON(WPCARRY*SEQ) 3.31424841 3.30615109 0.89764689 3.68 Residual 1.00000000 0.99755682 0.17365235 5.74 Covariance Parameter Estimates (REML) Pr > |Z| 0.0002 0.0001 Model Fitting Information for Y Description Value Observations 108.0000 Variance Estimate 0.9976 Standard Deviation Estimate 0.9988 Model Fitting Information for Y Description Value REML Log Likelihood -193.500 Akaike's Information Criterion -195.500 Schwarz's Bayesian Criterion -198.095 -2 REML Log Likelihood 387.0000 Tests of Fixed Effects Source NDF DDF Type III F Pr > F WPCARRY 2 34.5 0.04 0.9656 TRT 2 66 125.64 0.0001 PERIOD 1 66 15.35 0.0002 CARRY 2 66 2.19 0.1200 Least Squares Means Level LSMEAN Std Error DDF T Pr > |T| TRT A . . . . . TRT B . . . . . TRT C . . . . . CARRY 0 . . . . . CARRY A . . . . . CARRY B . . . . . CARRY C . . . . . Differences of Least Squares Means Level 1 Level 2 Difference Std Error DDF T Pr > |T| TRT A TRT B . . . . . TRT A TRT C . . . . . TRT B TRT C . . . . . CARRY 0 CARRY A . . . . . CARRY 0 CARRY B . . . . . CARRY 0 CARRY C . . . . . CARRY A CARRY B . . . . . CARRY A CARRY C . . . . . CARRY B CARRY C . . . . . The MIXED Procedure Class Level Information Class Levels Values SEQ 6 1 2 3 4 5 6 WPCARRY 3 AB AC BC TRT 3 A B C PERIOD 3 1 2 3 PERSON 6 1 2 3 4 5 6 REML Estimation Iteration History Iteration Evaluations Objective Criterion 0 1 270.82219183 1 1 205.05013327 0.00000000 Convergence criteria met. Covariance Parameter Estimates (REML) Cov Parm Ratio Estimate Std Error Z PERSON(SEQ*WPCARRY) 3.31424841 3.30615109 0.89764689 3.68 Residual 1.00000000 0.99755682 0.17365235 5.74 Covariance Parameter Estimates (REML) Pr > |Z| 0.0002 0.0001 Model Fitting Information for Y Description Value Observations 108.0000 Variance Estimate 0.9976 Standard Deviation Estimate 0.9988 REML Log Likelihood -193.500 Model Fitting Information for Y Description Value Akaike's Information Criterion -195.500 Schwarz's Bayesian Criterion -198.095 -2 REML Log Likelihood 387.0000 Tests of Fixed Effects Source NDF DDF Type III F Pr > F WPCARRY 2 34.5 0.04 0.9656 TRT 2 66 125.64 0.0001 LA 0 . . . LB 0 . . . LC 0 . . . PERIOD 1 66 15.35 0.0002 Least Squares Means Level LSMEAN Std Error DDF T Pr > |T| TRT A 23.67870370 0.35237162 48.5 67.20 0.0001 TRT B 22.84606481 0.35237162 48.5 64.84 0.0001 TRT C 26.80300926 0.35237162 48.5 76.06 0.0001 PERIOD 1 . . . . . PERIOD 2 . . . . . PERIOD 3 . . . . . Differences of Least Squares Means Level 1 Level 2 Difference Std Error DDF T Pr > |T| TRT A TRT B 0.83263889 0.26320102 66 3.16 0.0024 TRT A TRT C -3.12430556 0.26320102 66 -11.87 0.0001 TRT B TRT C -3.95694444 0.26320102 66 -15.03 0.0001 PERIOD 1 PERIOD 2 . . . . . PERIOD 1 PERIOD 3 . . . . . PERIOD 2 PERIOD 3 . . . . .