## Question:

Using the accompanying computer output based on the data in Problem 7 in Chapter 17, conduct a randomized-blocks analysis, treating the high schools as blocks, to test whether significant differences exist among the average math SAT (MSAT) scores for the years 2002, 2007, and 2012. Do the results obtained from this randomized-blocks analysis differ from those obtained earlier from the one-way ANOVA?

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## Dependent Variable: MSAT DF Sum of Squares Mean Square F Value Pr> F Source Model Error Corrected Total 312.533333 15 816667 19.76 0.0002 1875 200000 126 533333 2001.733333 14 R-SquareCoeff Var Root MSE vsat Mean 0.936788 0.734490 3 977017 541.4667 Source DF Type ISSMean Square F Value Pr> F year school 548 133333 274066667 17.33 0.0012 4 1327.066667 331.766667 20.98 0.0003 Source DF Type ll ss Mean Square F ValuePr>F 548.133333 4 1327 066667 year 274.066667 17.33 0.0012 331766667 20.98 003 school