Instruction 12-4
the Managers of a Brokerage Firm Are Interested

question 187

Short Answer

Instruction 12-4
The managers of a brokerage firm are interested in finding out if the number of new customers a broker brings into the firm affects the sales generated by the broker.They sample 12 brokers and determine the number of new customers they have enrolled in the last year and their sales amounts in thousands of dollars.These data are presented in the table that follows.
$\begin{array}{ccc}\text { Broker}&\text {Clients }&\text {Sales }\\\hline1 & 27 & 52 \\2 & 11 & 37 \\3 & 42 & 64 \\4 & 33 & 55 \\5 & 15 & 29 \\6 & 15 & 34 \\7 & 25 & 58 \\8 & 36 & 59 \\9 & 28 & 44 \\10 & 30 & 48 \\11 & 17 & 31 \\12 & 22 & 38\end{array}$
-Referring to Instruction 12-4,the managers of the brokerage firm wanted to test the hypothesis that the number of new customers brought in did not affect the amount of sales generated.The value of the test statistic is ________.

---

Definitions:

Break-even Price

The price level at which a business does not make a profit or a loss.

Long Run

In economics, the period in which all inputs can be adjusted, with no fixed costs, allowing for full adjustment to changes in the market.

Industry Supply Curve

A graphical representation showing the total quantity of a good that producers in an industry are willing to supply at various prices.

Individual Supply Curves

Graphical representations that show the relationship between the price of a good and the quantity of the good that a single producer is willing to supply.