Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-f-test_for_comparing_nested_models-1268-en_vufsw-f-test_for_comparing_nested_models-1268-en
   name	vufsw-f-test for comparing (nested) models-1268-en
   section	inferential statistics/regression/multiple linear regression/f-test for comparing (nested) models
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   Suppose the F-value in a multivariate regression is significant. Which conclusion(s) can you draw?

   I. The effects of all independent variables are significant.
   II. The explained variance of the regression model is in any case higher than 1.96.

   
   
   1. FALSE: Statement I is correct.
   2. FALSE: Statement II is correct.
   3. FALSE: Both statements are correct.
   4. TRUE: Neither statement is correct.
   
   

   Solution

   Neither statement is correct. If the F is significant the model as a whole is significant but you can not say anything about the separate variables. The explained variance can never be more than 100% or 1.0. The 1.96 is the critical value of the t test.

   M&T Bivariate linear regression
   Bivariate linear regression

   M&T Multivariate linear regression
   Default value

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