The following ANOVA table is based on the data discussed in Problem 5 of Chapter 8. Use α = .05.

a. Provide a test to compare the following two models:
Y = β0 + β1X1 + β2X2 + β3X3 + E
and
Y = β0 + β1X1 + E
b. Provide a test to compare the following two models:
Y = β0 + β1X1 + β3X3 + E
and
Y = β0 + E
c. State which two models are being compared in the computation

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Source d.f 18,953.04 7,010.03 10.93 2.248.23 (3x1) Regression) Residual Total 21 24 28,222.23 (18,953.04 7,010.03 + 10.93)/2 2,248.23/21