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, for these data, what is the value for the regression constant, b0?
A) 4.698
B) 21.293
C) 3.103
D) 0.998

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, for these data, what is the value for the regression constant, b0?
A) 4.698
B) 21.293
C) 3.103
D) 0.998

Quizplus · Accepted Answer

The regression constant, b0, is the y-intercept of the regression equation, which is calculated using the least squares method. Given the options, 21.293 is the correct value for b0 based on the provided data.

TABLE 14-1 a Manager of a Product Sales Group

TABLE 14-1
a Manager of a Product Sales Group