Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-equation-1923-en_uva-equation-1923-en
   name	uva-equation-1923-en
   section	Inferential Statistics/Regression/Equation
   type	schoice
   solution	FALSE, TRUE, FALSE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.522
   p-value	0.1975

   Question

   We have a regression equation $\hat{y} = 9 + 7x_{1} + 3x_{2} + 8x_{3}$ We check for x₁ and x₃. What is the decrease in predicted y if we go from 6 to 4 for x₂?

   
   
   1. FALSE: 2
   2. TRUE: 6
   3. FALSE: 14
   
   
   1. 2: Incorrect
   2. 6: Correct
   3. 14: Incorrect