TABLE 13-4 The Managers of a Brokerage Firm Are Interested in Finding

question 25

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.
-Referring to Table 13-4, the managers of the brokerage firm wanted to test the hypothesis that the number of new clients brought in had a positive impact on the amount of sales generated. At a level of significance of 0.01, the null hypothesis should be ________ (rejected or not rejected).

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Definitions:

Efficient Frontier

A graphical representation in modern portfolio theory showing the set of optimal portfolios that offer the highest expected return for a defined level of risk or vice versa.

Firm-specific Risk

The risk associated with an individual company, distinct from market risk, that can affect the company's stock price.

Diversifiable Risk

The portion of investment risk that can be reduced or eliminated through diversification in an investment portfolio.

Unique Risk

Another term for diversifiable risk, emphasizing the idea that this risk is specific to an individual investment and not the market as a whole.