최신 A00-240 무료덤프 - SASInstitute SAS Certified Statistical Business Analyst Using SAS 9: Regression and Modeling Credential
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 percentage of customers' intent to purchase is explained by market segment?
Click the calculator button to display a calculator if needed.
정답: C
The selection criterion used in the forward selection method in the GLMSELECT procedure is:
정답: D
Refer to the confusion matrix:

An analyst determines that loan defaults occur at the rate of 3% in the overall population. The above confusion matrix is from an oversampled test set (1 = default).
What is the sensitivity adjusted for the population event probability?

An analyst determines that loan defaults occur at the rate of 3% in the overall population. The above confusion matrix is from an oversampled test set (1 = default).
What is the sensitivity adjusted for the population event probability?
정답:
Enter your answer in the space below. Round to three decimals (example: n.nnn).
0.617
0.617
In order to perform honest assessment on a predictive model, what is an acceptable division between training, validation, and testing data?
정답: D
Refer to the following exhibit:

What is a correct interpretation of this graph?

What is a correct interpretation of this graph?
정답: D
A non-contributing predictor variable (Pr > |t| =0.658) is added to an existing multiple linear regression model.
What will be the result?
What will be the result?
정답: D
Refer to the lift chart:

What does the reference line at lift = 1 corresponds to?

What does the reference line at lift = 1 corresponds to?
정답: D
Refer to the exhibit:

Which SAS program produced the graph?


Which SAS program produced the graph?

정답: C
Refer to the confusion matrix:

Calculate the accuracy and error rate (0 - negative outcome, 1 - positive outcome)

Calculate the accuracy and error rate (0 - negative outcome, 1 - positive outcome)
정답: D
One common approach for predicting rare events in the LOGISTIC procedure is to build a model that disproportionately over-re presents those cases with an event occurring (e.g. a 50-50 event/non-event split).
What problem does this present?
What problem does this present?
정답: C