Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-regression-1255-en_vufsw-regression-1255-en
   name	vufsw-regression-1255-en
   section	inferential statistics/regression
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical literacy

   Question

   A scientist performs an experiment to make a special type of crystal. He uses different temperatures to see which temperature gives the strongest crystal. He ensured that the humidity in the room was the same for all crystals. Which type of variable is the humidity in the room?

   
   
   1. FALSE: The dependent variable
   2. FALSE: The independent variable
   3. FALSE: A confounding variable
   4. TRUE: A control variable
   
   

   Solution

    The humidity is a control variable. The strength of the crystal is the dependent variable and the temperature the independent variable.

   M&T Causal models
   Default value

   M&T Multivariate linear regression
   Default value

   
   
   1. False
   2. False
   3. False
   4. True