72 exceeds the tabulated value 446 we reject the null

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7.72, exceeds the tabulated value, 4.46, we reject the null hypothesis of equality of the mean scores for the three groups. Computer output shown here verifies the results we obtained by hand. LISTING OF DATA OBS METHOD SCORE 1 1 80 2 1 92 3 1 87 4 1 83 5 2 70 6 2 81 7 2 78 8 2 74 9 3 63 10 3 76 11 3 70 ANALYSIS OF VARIANCE PROCEDURE GENERAL LINEAR MODELS PROCEDURE DEPENDENT VARIABLE: SCORE SOURCE DF SUM OF SQUARES MEAN SQUARE F VALUE PR > F R-SQUARE C.V MODEL 2 452.12878788 226.06439394 7.71 0.0136 0.658556 6.9724 ERROR 8 234.41666667 29.30208333 ROOT MSE SCORE MEAN CORRECTED TOTAL 10 686.54545455 5.41313988 77.63636364 SOURCE DF TYPE I SS F VALUE PR > F DF TYPE III SS F VALUE PR > F METHOD 2 452.12878788 7.71 0.0136 2 452.12878788 4
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