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WGU-748

SAS Programming II Business Analysis Applications

QuestionAnswer
VIF Variance Inflation Factor Detects Multi-collinearity 1/(1-R-square) As a rule of thumb, should not exceed 10
-2 Log L Likelihood-ratio statistic Larger values lead to smaller p-values
Concordant Observations with a larger value of X also have a larger value of Y
Discordant Observations with a larger value of X have a smaller value of Y
odds ratio odds1/odds0
/solution Option used in proc GLM for models with classification effects
ilink requests logit estimate be transformed into probabilities
Type I error Power is decreased As alpha is decreased Type I error rejecting null hypothesis when it is true (false pos)
Type II error Failing to reject the null hypothesis when it is false (false neg)
Standardized Estimates (e.g. "What is the rank order of the relative importance of the predictor variables?") variables are rank-ordered by their absolute values
Which statistic, calculated from a validation sample, can help decide which model to use for prediction of a binary target variable? Average squared error
Created by: ronzStack
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