Salesperson
the General Manager of a Chain of Furniture Stores

question 13

Essay

Salesperson
The general manager of a chain of furniture stores believes that experience is the most important factor in determining the level of success of a salesperson.To examine this belief she records last month's sales (in $1,000s)and the years of experience of 10 randomly selected salespeople.These data are listed below.
$$\begin{array} { | c | c | c | } \hline \text { Ealesperson } & \text { Years of Experience } & \text { Eales } \\\hline 1 & 0 & 7 \\\hline 2 & 2 & 9 \\\hline 3 & 10 & 20 \\\hline 4 & 3 & 15 \\\hline 5 & 8 & 18 \\\hline 0 & 5 & 14 \\\hline 7 & 12& 20 \\\hline 8 &7 & 17 \\\hline 9 &20 & 30 \\\hline 10 & 15& 25 \\\hline\end{array}$$
-If the regression equation is $\hat { y } = 8.63 + 1.0817 x$ ,calculate the residuals

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Definitions:

Interest Method

A technique used in accounting and finance to calculate the interest income or expense on bonds and loans over their life.

Unamortized Premium

The portion of the bond premium that has not yet been amortized or allocated as an expense over the bond's life.

Straight-Line Method

A depreciation method that allocates an equal portion of the initial cost of an asset to each accounting period over its useful life.

Amortization

The process of gradually writing off the initial cost of an asset over a period.