The SAS System 1 13:27 Wednesday, January 5, 2011 The MEANS Procedure Analysis Variable : zinc N city rate Obs Mean ------------------------------------------- A 0.5 4 24.5500000 1 4 30.4500000 1.5 4 36.1750000 B 0.5 4 31.1750000 1 4 48.2000000 1.5 4 72.6000000 C 0.5 4 19.1000000 1 4 21.9000000 1.5 4 20.0500000 ------------------------------------------- The SAS System 2 13:27 Wednesday, January 5, 2011 The GLM Procedure Class Level Information Class Levels Values city 3 A B C rate 3 0.5 1 1.5 Number of Observations Read 36 Number of Observations Used 36 The SAS System 3 13:27 Wednesday, January 5, 2011 The GLM Procedure Dependent Variable: zinc Sum of Source DF Squares Mean Square F Value Pr > F Model 8 9475.515000 1184.439375 61.75 <.0001 Error 27 517.865000 19.180185 Corrected Total 35 9993.380000 R-Square Coeff Var Root MSE zinc Mean 0.948179 12.95716 4.379519 33.80000 Source DF Type I SS Mean Square F Value Pr > F city 2 5720.671667 2860.335833 149.13 <.0001 rate 2 1945.445000 972.722500 50.71 <.0001 city*rate 4 1809.398333 452.349583 23.58 <.0001 Source DF Type III SS Mean Square F Value Pr > F city 2 5720.671667 2860.335833 149.13 <.0001 rate 2 1945.445000 972.722500 50.71 <.0001 city*rate 4 1809.398333 452.349583 23.58 <.0001 Contrast DF Contrast SS Mean Square F Value Pr > F Rate Linear 1 1944.000000 1944.000000 101.35 <.0001 Rate Quadratic 1 1.445000 1.445000 0.08 0.7858 City*Rate Linear 2 1760.147500 880.073750 45.88 <.0001 City*Rate Quadratic 2 49.250833 24.625417 1.28 0.2933