Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-equation-1939-en_uva-equation-1939-en
   name	uva-equation-1939-en
   section	Inferential Statistics/Regression/Equation
   type	schoice
   solution	FALSE, FALSE, TRUE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.522
   p-value	0.1975

   Question

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

   
   
   1. FALSE: 3
   2. FALSE: 6
   3. TRUE: 24
   
   
   1. 3: Incorrect
   2. 6: Incorrect
   3. 24: Correct