SCENARIO 13-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollars)for individual stores based on the number of customers who made purchases.A random sample of 12 stores yields the following results:

-Referring to Scenario 13-10,the residual plot indicates possible violation of which assumptions?
A)Linearity of the relationship
B)Homoscedasticity
C)Autocorrelation
D)Normality

Question

SCENARIO 13-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollars)for individual stores based on the number of customers who made purchases.A random sample of 12 stores yields the following results:
  
-Referring to Scenario 13-10,the residual plot indicates possible violation of which assumptions?
A)Linearity of the relationship 
B)Homoscedasticity 
C)Autocorrelation 
D)Normality

Quizplus · Accepted Answer

The residual plot shows a pattern of increasing variability, indicating that the assumption of homoscedasticity may be violated. There is no clear evidence of violations of the other assumptions (linearity, autocorrelation, and normality).

SCENARIO 13-10 the Management of a Chain Electronic Store Would Like to Like