Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-simple-linear-regression-91-en_uva-simple-linear-regression-91-en
   name	uva-simple-linear-regression-91-en
   section	Inferential Statistics/Regression/Simple linear regression
   type	schoice
   solution	TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	4.006
   p-value	0.1145

   Question

   To examine whether a relationship exists between the variables x and y a regression analysis is performed. Before the analysis is performed, a number of assumptions for testing for regression coefficients are checked. First, the values of x and y are plotted on a graph. From the graph, it seems likely the assumption of regression violated which states

   

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