Consider the following computer output from a single replicate of a 2⁴experiment in two blocks with ABCD confounded.

(a) Comment on the value of blocking in this experiment.

(b) What effects were used to generate the residual error in the ANOVA?

(c) Calculate the entries marked with €œ?€ in the output. Factorial Fit: y Versus Block, A, B, C, D

Estimated Effects and Coefficients

Transcribed Image Text:

Coef Term Effect SE Coef Constant 579.33 9.928 58.35 0.000 Block 105.68 9.928 10.64 0.000 9.928 -7.70 -0.78 0.481 -15.41 0.889 B 2.95 1.47 9.928 0.15 9.928 15.92 7.96 0.80 0.468 9.928 0.129 -37.87 -18.94 -1.91 0.702 A*B -8.16 -4.08 9.928 -0.41 2.95 9.928 A*C 5.91 0.30 0.781 0.202 A*D 30.28 9.928 20.43 10.21 0.362 B*C 9.928 1.03 B*D -17.11 -8.55 9.928 -0.86 0.437 0.835 C*D 4.41 2.21 9.928 0.22 S= 39.7131 R-Sq = 96.84% R-Sq (adj) = 88.16%