Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-simple-linear-regression-41-en_uva-simple-linear-regression-41-en
   name	uva-simple-linear-regression-41-en
   section	Inferential Statistics/Regression/Simple linear regression
   type	schoice
   solution	FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	5.255
   p-value	0.0072

   Question

   To establish a relationship between the continuous variables x and y, a regression analysis is performed. Before interpreting the results interpretation, a number of assumptions for testing the regression coefficients are checked. As a first indication, the values of x and y are plotted on a graph. The graph shows that the assumption of regression is violated which states

   

   
   
   1. FALSE: That the population mean of y is linearly related to x.
   2. TRUE: That the population standard deviation of y is the same for all values of x.
   3. FALSE: That the population distribution of y is normally distributed for all values of x.
   
   
   1. That the population mean of y is linearly related to x.: Incorrect
   2. That the population standard deviation of y is the same for all values of x.: Correct
   3. That the population distribution of y for all values of x is normally distributed…: Incorrect