Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-ftestforcomparingnestedmodels-008-en_vufgb-ftestforcomparingnestedmodels-008-en
   name	vufgb-ftestforcomparingnestedmodels-008-en
   section	Inferential Statistics/Regression/Multiple linear regression/F-test for comparing (nested) models
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Performing analysis, Interpreting output, Calculation
   Program
   Language	English
   Level	Statistical Thinking

   Question

   Given are the ANOVA tables of two nested regression models: one model with two predictors, and one model with two predictors and their interaction. Use the model comparison test (“Model Comparison Test”) to determine whether there is significant interaction.

   

   
   
   1. FALSE: F(df1=3, df2=30)= 4.48 > 2.92, so significant interaction
   2. FALSE: F(df1=3, df2=29)= 4.33 > 2.93, so significant interaction
   3. FALSE: F(df1=1, df2=30)= 13.45 > 4.17, so significant interaction
   4. TRUE: F(df1=1, df2=29)= 13.00 > 4.18, so significant interaction
   
   
   1. Incorrect
   2. Incorrect
   3. Incorrect
   4. Correct