5. The following is some R output when the 7 first order models fitted to the data described in Question 4: 1m(final test1 + test2 + project) ANOVA Sum of Squares DF Mean Square F Sig. Regression 396.985 Residual Total 98.405 495.390 16 19 3699 132.328 6.150 21.516 0.0000 Parameter Estimates model Beta Std. Error Std. Beta t Sig (Intercept) 117.085 99.782 1.173 0.258 test1 4.334 3.016 4.264 1.437 0.170 test2 -2.857 2.582 -2.929 -1.106 0.285 project -2.186 1.595 -1.561 -1.370 0.190

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