Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-equation-0014-en_vufsw-equation-0014-en
   name	vufsw-equation-0014-en
   section	inferential statistics/regression/equation
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical literacy

   Question

   Below is the formula of a multiple regression of Y with two independent variables (X₁ and X₂).
   Suppose you want to know whether X₁ has a significant influence on Y, controlled for the effect of X₂ on Y (“X₂ is held constant”).

   So what should you test in this case? You must then, as an investigator test whether …

   

   
   
   1. TRUE: The value of b₁ significantly differs from 0
   2. FALSE: The difference between the value of b₁ and the value of b2 ****significantly differs from 0
   3. FALSE: The difference between the value of X₁ and the value of b₁ significantly deviates from 0
   4. FALSE: The value of X₁significantly differs from 0
   
   

   Solution

   it is y = a + b₁ x ₁ + b₂ x ₂

   
   
   1. True
   2. False
   3. False
   4. False