Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-nullhypothesis-0227-en_vufsw-nullhypothesis-0227-en
   name	vufsw-nullhypothesis-0227-en
   section	inferential statistics/nhst/hypothesis/null hypothesis
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   A multiple regression analysis gives the results below.
   What is the zero hypothesis in this testing, and what do we conclude when we test with alpha = 0.05 (significance level = 5%)?

   

   
   
   1. TRUE: H₀: all βs are 0. We reject the null hypothesis because the p-value is less than 0.05.
   2. FALSE: H₀: all βs are 0. We reject the null hypothesis not because the p-value is smaller than 0,05.
   3. FALSE: H₀: The explained variance (R²) = 1. We reject the null hypothesis because the p-value is smaller than 0.05.
   4. FALSE: H₀: The explained variance (R²) = 1. We reject the null hypothesis not because the p-value is smaller than 0,05.
   
   
   1. True
   2. False
   3. False
   4. False