A00-240 SAS Statistical Business Analysis SAS9: Regression and Model Questions and Answers

Refer to the ROC curve:

As you move along the curve, what changes?

Refer to the exhibit.

These graphs were created using the GLM procedure with the plots(only)=diagnostics option.

Which plot do you use to identify influential observations?

A marketing campaign will send brochures describing an expensive product to a set of customers. The cost for mailing and production per customer is $50. The company makes $500 revenue for each sale.

What is the profit matrix for a typical person in the population?

In partitioning data for model assessment, which sampling methods are acceptable? (Choose two.)

The total modeling data has been split into training, validation, and test data.

What is the best data to use for model assessment?

Which SAS program will correctly use backward elimination selection criterion within the REG procedure?

Which of the following describes a concordant pair of observations in the LOGISTIC procedure?

Refer to the exhibit.

Given alpha=0.02, which conclusion is justified regarding percentage of body fat, comparing small (S), medium (M), and large (L) wrist sizes?

There are missing values in the input variables for a regression application.

Which SAS procedure provides a viable solution?

Customers were surveyed to assess their intent to purchase a product. An analyst divided the customers into groups defined by the company's pre-assigned market segments and tested for difference in the customers' average intent to purchase. The following is the output from the GLM procedure:

What percentage of customers' intent to purchase is explained by market segment?

Click the calculator button to display a calculator if needed.

What is a benefit to performing data cleansing (imputation, transformations, etc.) on data after partitioning the data for honest assessment as opposed to performing the data cleansing prior to partitioning the data?