TABLE 13-4
the Managers of a Brokerage Firm Are Interested

question 21

Short Answer

TABLE 13-4
The managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales generated by the broker. They sample 12 brokers and determine the number of new clients they have enrolled in the last year and their sales amounts in thousands of dollars. These data are presented in the table that follows.
$\begin{array}{lll}\text { Broker } & \text { Cliente } & \text { Sales } \\1 & 27 & 52 \\2 & 11 & 37 \\3 & 42 & 64 \\4 & 33 & 55 \\5 & 15 & 29 \\6 & 15 & 34 \\7 & 25 & 58 \\8 & 36 & 59 \\9 & 28 & 44 \\10 & 30 & 48 \\11 & 17 & 31 \\12 & 22 & 38\end{array}$


-Referring to Table 13-4, the managers of the brokerage firm wanted to test the hypothesis that the true slope was equal to 0. The value of the test statistic is _____.

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Definitions:

Income Bracket

Categories of income range used for tax purposes or to analyze economic data, showing the distribution of population by income levels.

Political Party

A group of individuals united by similar political goals and views, aiming to affect policy decisions by having their members elected into governmental positions.

Level of Significance

A threshold chosen by the researcher that determines when to reject the null hypothesis in statistical testing.

Preferred Music Type

Indicates an individual's favorite genre or style of music, which reflects personal taste or cultural influence.