Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-equation-1937-en_uva-equation-1937-en
   name	uva-equation-1937-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 $\hat{y} = 4 + 3x_{1} + 10x_{2} + 6x_{3}$ We check for x₂ and x₃. What is the decrease in predicted y if we go from 9 to 0 for x₁?

   
   
   1. FALSE: 9
   2. TRUE: 27
   3. FALSE: 54
   
   
   1. 9: Incorrect
   2. 27: Correct
   3. 54: Incorrect