Determine whether the statement is true or false. If two variables have a correlation coefficient equal to plus+0.75, the scatter plot will have an upward slope moving from left to right. True False A car manufacturer would like to develop a regression model that would predict the number of cars sold per month by a dealership employee based on theemployee's number of years of sales experience(Exp), theemployee's weekly base salary before commissions(Salary), and the education level of the employee. There are three levels of education in the sales forcelong dashhigh schooldegree, associate'sdegree, andbachelor's degree. The following dummy variables have beendefined:ED1equals=1 for aBachelor's degree, ED1equals=0 otherwise;ED2equals=1 for anAssociate's degree, ED2equals=0 otherwise. The given Excel output shows the partially completed regression output from a random sample of employees from the previous month. What is the multiple coefficient of determination for thismodel? LOADING...Click the icon to view the Excel output.

A.

0.6644

B.

0.8163

C.

0.7796

D.

0.9035

Complete the following statement.A________ predicts the change in a dependent variable due to aone-unit increase in an independent variable while holding other variables constant.

A.

coefficient of determination

B.

regression coefficient

C.

residual

D.

correlation coefficient

A car dealership would like to estimate the number of years owners keep the cars that they purchased as a new vehicle. The following data shows the age of seven vehicles that were sold for the first time by their owners. What is the point estimate for the age of cars sold for the firsttime?

4

12

3

10

7

4

5

A.

3.50

B.

5.72

C.

6.43

D.

4.86