Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-equation-1945-en_uva-equation-1945-en
   name	uva-equation-1945-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 $\hat{y} = 2 + 5x_{1} + 3x_{2} + 2x_{3}$ We check for x₂ and x₃. What is the increase in predicted y if we go from 3 to 9 for x₁?

   
   
   1. FALSE: 15
   2. FALSE: 18
   3. TRUE: 30
   
   
   1. 15:Incorrect
   2. 18: Incorrect
   3. 30: Correct