QUESTION 52
The total modeling data has been split into training, validation, and test data.
What is the best data to use for model assessment?

QUESTION 53
Refer to the lift chart: What does the reference line at lift = 1 corresponds to?

QUESTION 54
Refer to the REG procedure output:

Calculate the coefficient of determination, R-Square.

QUESTION 55
Given the following GLM procedure output:

Which statement is correct at an alpha level of 0.05?

QUESTION 56
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?

QUESTION 57
A confusion matrix is created for data that were oversampled due to a rare target.
What values are not affected by this oversampling?

QUESTION 58
Refer to the exhibit:

SAS output from the RSQUARE selection method, within the REG procedure, is shown. The top two models in each subset are given.
Based on the exhibit, which statement is true?

QUESTION 59
Given the following LOGISTIC procedure:

What is the difference between the datasets OUTFILEJ and OUTFILE_2?

QUESTION 60
Refer to the exhibit:

The box plot was used to analyze daily sales data following three different ad campaigns.
The business analyst concludes that one of the assumptions of ANOVA was violated.
Which assumption has been violated and why?

QUESTION 61
Which statistic, calculated from a validation sample, can help decide which model to use for prediction of a binary target variable?

QUESTION 62
The following LOGISTIC procedure output analyzes the relationship between a binary response and an
ordinal predictor variable, wrist_size Using reference cell coding, the analyst selects Large (L) as the
reference level.

What is the estimated logit for a person with large wrist size?
Click the calculator button to display a calculator if needed.

QUESTION 63
This question will ask you to provide a missing option.
Complete the following syntax to test the homogeneity of variance assumption in the GLM procedure:
means Region / <insert option here> =levene ;

QUESTION 64
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?

QUESTION 65
A predictive model uses a data set that has several variables with missing values.
What two problems can arise with this model? (Choose two.)

QUESTION 66
Given the following LOGISTIC procedure:

What is the difference between the datasets OUTFILEJ and OUTFILE_2?

QUESTION 67
Given the following SAS data set TEST:

Which SAS program is NOT a correct way to create dummy variables?

QUESTION 68
A predictive model uses a data set that has several variables with missing values.
What two problems can arise with this model? (Choose two.)

QUESTION 69
In partitioning data for model assessment, which sampling methods are acceptable? (Choose two.)

QUESTION 70
The following LOGISTIC procedure output analyzes the relationship between a binary response and an ordinal predictor variable, wrist_size Using reference cell coding, the analyst selects Large (L) as the reference level.

What is the estimated logit for a person with large wrist size?
Click the calculator button to display a calculator if needed.

QUESTION 71
The standard form of a linear regression model is:

Which statement best summarizes the assumptions placed on the errors?

QUESTION 72
Refer to the exhibit.

Based on the control plot, which conclusion is justified regarding the means of the response?

QUESTION 73
Within PROC GLM, the interaction between the two categorical predictors, Income and Gender, was shown to be significant. An item store was saved from the GLM analysis.
Which statement from PROC PLM would test the significance of Gender within each level of Income and adjust for multiple tests?

QUESTION 74
A non-contributing predictor variable (Pr > |t| =0.658) is added to an existing multiple linear regression model.
What will be the result?

QUESTION 75
Refer to the REG procedure output:

The Intercept estimate is interpreted as:

QUESTION 76
Refer to the confusion matrix:

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