An analyst investigates Region (A, B, or C) as an input variable in a logistic regression model.
The analyst discovers that the probability of purchasing a certain item when Region = A is 1.
What problem does this illustrate?

• A.Influential observations
• B.Collinearity
• C.Quasi-complete separation
• D.Problems that arise due to missing values

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

• A.The predicted lift if none of the population are scored as event cases
• B.The predicted lift for the best 50% of validation data cases
• C.The predicted lift if the entire population is scored as event cases
• D.The predicted lift if 50% of the population are randomly scored as event cases

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Refer to the lift chart:

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

• A.The predicted lift if 50% of the population are randomly scored as event cases
• B.The predicted lift for the best 50% of validation data cases
• C.The predicted lift if none of the population are scored as event cases
• D.The predicted lift if the entire population is scored as event cases

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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?

• A.There is no significant difference due to wrist size.
• B.Medium wrist size is significantly different than small wrist size.
• C.Large wrist size is significantly different than small wrist size.
• D.Large wrist size is significantly different than medium wrist size.

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Refer to the exhibit:

SAS output from the RSOUARE selection method, within the REG procedure, is shown. The top two
models in each subset are given.
Based on the AIC statistic, which model is the champion model?

• A.RestPulse
• B.RunTime
• C.Age Weight RunTime RunPulse MaxPulse
• D.Age Weight RunTime RunPulse RestPulse MaxPulse

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