Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-ftestforcomparingnestedmodels-001-en_vufgb-ftestforcomparingnestedmodels-001-en
   name	vufgb-ftestforcomparingnestedmodels-001-en
   section	Inferential Statistics/Regression/Multiple linear regression/F-test for comparing (nested) models
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Calculation
   Language	English
   Level	Statistical Thinking

   Question

   In a Model Comparison Test, the following 2 nested models are compared. The sample size is 50.

   • Reduced model: $\hat{y} = a + b_1 x_1 + b_2 x_2 + b_3 x_3$
   • Complete model: $\hat{y} = a + b_1 x_1 + b_2 x_2 + b_3 x_3 + b_4 x_1 x_2 + b_5 x_1 x_3$

   Complete the following sentence: “The Model Comparison Test has in the numerator … degrees of freedom and in the denominator … degrees of freedom.”

   
   
   1. FALSE: 2, 46
   2. TRUE: 2, 44
   3. FALSE: 4, 46
   4. FALSE: 6, 44