The accompanying data file contains weekly data on crew size (Crew) and productivity (Output) over the past 27 weeks. A linear regression model and a quadratic regression model are considered for predicting productivity on the basis of crew size. b-1. Use the k-fold method, with k = 3, to calculate the average RMSE of the two models. Note: Do not round intermediate calculations and round your final answers to 2 decimal places. Model 1 Model 2 Average RMSE b-2. Is the preferred model the same as found by the holdout method? Yes, because the average RMSE equals the RMSE with the holdout method. O No, because the average RMSE does not equal the RMSE with the holdout method. Yes, because the earlier preferred model also has the lowest average RMSE. O No, because the earlier preferred model does not have the lowest average RMSE. 1 Crew A B Output 10 2 2 3 3 12 4 4 12 5 5 17 6 6 18 7 7 18 8 8 12 9 9 14 10 10 12 11 2 12 12 3 9 13 4 16 14 5 16 15 6 17 16 7 17 17 8 14 18 9 12 19 10 11 20 2 9 21 3 14 22 4 14 23 5 16 24 6 15 25 7 17 26 8 15 27 9 10 28 10 12