Questio
n
1
1.
A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a sales person makes and the amount of the sales dollars earned.
What is the independent variable?
Answer
Salesperson 

Number of contacts 

Amount of sales 

Sales manager 
20 points
Question 2
1. In an ANOVA table for simple linear regression, the degrees of freedom for the regression mean square is equal to
Answer
1. 
n – 1. 
n – 2. 
n 
20 points
Question 3
1. A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a sales person makes and the amount of the sales dollars earned. What is the dependent variable?
Answer
Salesperson
Number of contacts
Sales manager
Amount of sales dollars 
20 points
Question 4
1. If the correlation coefficient between two variables equals zero, what can be said of the variables X and Y?
Answer
Not related 
Dependent on each other 
Highly related 
X causes Y 
20 points
Question 5
1. Given the least squares regression equation, Ŷ = 1,202 + 1,133X, when X = 3, what does Ŷ equal?
Answer
5,734 
8,000 
4,601 
4,050 