TABLE 14-1
A manager of a product sales group believes the number of sales made by an employee (Y) depends on how many years that employee has been with the company (X 1 ) and how he/she scored on a business aptitude test (X 2 ). A random sample of 8 employees provides the following:
$$\begin{array} { c r r r }
\text { Employee } & Y & X _ { 1 } & X _ { 2 } \
\hline 1 & 100 & 10 & 7 \
2 & 90 & 3 & 10 \
3 & 80 & 8 & 9 \
4 & 70 & 5 & 4 \
5 & 60 & 5 & 8 \
6 & 50 & 7 & 5 \
7 & 40 & 1 & 4 \
8 & 30 & 1 & 1
\end{array}$$
-Referring to Table 14-1, if an employee who had been with the company 5 years scored a 9 on the aptitude test, what would his estimated expected sales be?
A) 55.62
B) 17.98
C) 79.09
D) 60.88

Question

TABLE 14-1
 A manager of a product sales group believes the number of sales made by an employee (Y) depends on how many years that employee has been with the company (X 1 ) and how he/she scored on a business aptitude test (X 2 ). A random sample of 8 employees provides the following:
 $$\begin{array} { c r r r } 
\text { Employee } & Y & X _ { 1 } & X _ { 2 } \
\hline 1 & 100 & 10 & 7 \
2 & 90 & 3 & 10 \
3 & 80 & 8 & 9 \
4 & 70 & 5 & 4 \
5 & 60 & 5 & 8 \
6 & 50 & 7 & 5 \
7 & 40 & 1 & 4 \
8 & 30 & 1 & 1
\end{array}$$
-Referring to Table 14-1, if an employee who had been with the company 5 years scored a 9 on the aptitude test, what would his estimated expected sales be?
A) 55.62
B) 17.98
C) 79.09
D) 60.88

Quizplus · Accepted Answer

To estimate expected sales, a regression model is typically used. The coefficients for years with the company and test score would be calculated from the data, and then used to predict sales for an employee with 5 years and a score of 9. The correct choice is based on this calculation.

TABLE 14-1 a Manager of a Product Sales Group

TABLE 14-1
a Manager of a Product Sales Group