Number of Years
Data Was Collected to Describe the Relationship

Number of years
Data was collected to describe the relationship between salary and number of years of working experience at a particular organization and is shown below in the following table.
$$\begin{array} { | c | c | c | } \hline \text { Employee } & \text { Salary } & \text { Years af Experience } \\\hline 1 & \$ 35,000 & 4 \\\hline 2 & \$ 7,200 & 13 \\\hline 3 & \$ 45,900 & 6 \\\hline 4 & \$ 42,200 & 7 \\\hline 5 & \$ 65,600 & 10 \\\hline 6 & \$ 51,500 & 9 \\\hline 7 & \$ 57,200 & 5 \\\hline 8 & \$ 71,400 & 7 \\\hline\end{array}$$
-The divisor of the standard error of estimate in simple linear regression is: