Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-equation-1938-en_uva-equation-1938-en
   name	uva-equation-1938-en
   section	Inferential Statistics/Regression/Equation
   type	schoice
   solution	TRUE, FALSE, FALSE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.522
   p-value	0.1975

   Question

   We have a regression equation $\hat{y} = 2 + 5x_{1} + 7x_{2} + 4x_{3}$ We check for x₂ and x₃. What is the increase in predicted y if we go from 6 to 9 for x₁?

   
   
   1. TRUE: 15
   2. FALSE: 21
   3. FALSE: 30
   
   
   1. 15: Correct
   2. 21: Incorrect
   3. 30: Incorrect