The accompanying data file contains 35observations for an ice cream truck driver's daily income (Income in $), number of hours on the road (Hours), whether it was a particularly hot day (Hot=1 if the high temperature was above 85F, 0 otherwise), and whether it was a Holiday (Holiday = 1, 0 otherwise). Consider two models where Model 1 predicts Income on the basis of Hours, Hot, and Holiday and Model 2 also includes the interaction between Hot and Holiday.

a-1.Use the holdout method to compare the predictability of the models using the first 24 observations for training and the remaining 11 observations for validation. Report the estimates of Models 1 and 2 derived from the training set.(Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)

\fPredictor Variable Model 1 Model 2 Constant Hours Hot Holiday Hot x Holiday