Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-dummies-007-en_vufgb-dummies-007-en
   name	vufgb-dummies-007-en
   section	Inferential Statistics/Regression/Dummies, Inferential Statistics/Parametric Techniques/ANOVA/ANCOVA
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Calculation
   Program
   Language	English
   Level	Statistical Literacy

   Question

   A researcher is interested in the effect of physical exercise (z = 0 for no physical exercise, z = 1 for physical exercise) on y = working memory. In doing so, she wants to control for x = age. The regression equation is $\hat{y} = 120+10z-0.5x$. The average age is 60 for no physical activity and 50 for physical activity. The overall mean age is 55. Calculate the adjusted mean (“adjusted mean”) of working memory for well physical exercise.

   
   
   1. FALSE: 92.5
   2. FALSE: 95
   3. TRUE: 102.5
   4. FALSE: 105
   
   
   1. Incorrect
   2. Incorrect
   3. Correct
   4. Incorrect