Refer to the exhibit:
Which SAS program produced the graph?
While building a predictive model, median imputations are performed while preparing the training data.
How should the imputations be addressed in the validation data?
Which SAS program will best identify influential observations in a multiple regression application?
Refer to the exhibit.
Output from a multiple linear regression analysis is shown.
What is the most appropriate statement concerning collinearity between the input variables?
PROC GLMSELECT was used for building a model predicting the natural log of a baseball player's salary from certain performance and longevity statistics. The model used backward elimination using SBC as its selection criterion. The sequence of steps is summarized in the graphic shown below:
At Step 9 number of at bats (nAtBat) was removed from the model.
Why was it removed?