Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-dummies-006-en_vufgb-dummies-006-en
   name	vufgb-dummies-006-en
   section	Inferential Statistics/Regression/Dummies, Inferential Statistics/Regression/Dummies
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Interpreting output
   Program
   Language	English
   Level	Statistical Literacy

   Question

   A market researcher wants to know whether people who drive a Mercedes, Audi, Golf or Opel differ on the y-variable impulsivity. He finds the following regression equation: $\hat{y} = 35+3z_{1}+5z_{2}-2z_{3}$, in which he coded the dummy variables according to the diagram below. Which group of car drivers is the least impulsive?

   

   
   
   1. FALSE: Mercedes drivers
   2. FALSE: Audi drivers
   3. TRUE: Golf drivers
   4. FALSE: Opel drivers
   
   
   1. Incorrect
   2. Incorrect
   3. Correct
   4. Incorrect