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

• A.Test data
• B.Training data
• C.Validation data
• D.Total data

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Refer to the REG procedure output:

An analyst has selected this model as a champion because it shows better model fit than a competing model with more predictors.
Which statistic justifies this rationale?

• A.R-Square
• B.Error DF
• C.Coeff Var
• D.Adj R-Sq

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Refer to the following odds ratio table:

What is a correct interpretation of the estimate?

• A.The probability of the event is 1.142 greater for each one dollar increase in salary.
• B.The odds of the event are 1.142 greater for each one dollar increase in salary.
• C.The odds of the event are 1.142 greater for each one thousand dollar increase in salary.
• D.The probability of the event is 1.142 greater for each one thousand dollar increase in salary.

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In order to perform honest assessment on a predictive model, what is an acceptable division between training, validation, and testing data?

• A.Training: 0% Validation: 100% Testing: 0%
• B.Training: 50% Validation: 0% Testing: 50%
• C.Training: 50% Validation: 50% Testing: 0%
• D.Training: 100% Validation: 0% Testing: 0%

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The standard form of a linear regression model is: Which statement best summarizes the assumptions placed on the errors?

• A.The errors are correlated, normally distributed with zero mean and constant variance.
• B.The errors are independent, normally distributed with zero mean and constant variance.
• C.The errors are correlated, normally distributed with constant mean and zero variance.
• D.The errors are independent, normally distributed with constant mean and zero variance.

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