(Data file: MinnLand) Continuing with the last problem, suppose you fit the model log(acre Price) ∼ year + f year, including year both as a continuous predictor and as a factor. What do you think will...

(Data file: MinnLand) Continuing with the last problem, suppose you fit the model log(acre Price) ∼ year + f year, including year both as a continuous predictor and as a factor. What do you think will happen? Try it and find out if you were right!

(Data file: MinnLand) Repeat the simulation of Section 6.4, but for the lack-of-fit test of In the simulation, use the fraction of data used in the test f ∈ {0.01, 0.05, 0.10, 0.15, 0.20}. Comment on the results.