Exhibit 20

question 50

Multiple Choice

Exhibit 20.4.Investment institutions usually have funds with different risk vs.reward prospectuses.A trading magazine wants to determine if the returns of high risk funds is greater than low risk funds.The magazine records the return of high and low risk funds for a sample of 22 institutions.For the Wilcoxon signed-rank test,where D = high risk return - low risk return,the value of the test statistic is . Refer to Exhibit 20.4.Using the p-value approach and ,the appropriate conclusion is:

• A)Reject the null hypothesis,conclude the median difference of the returns is greater than zero
• B)Reject the null hypothesis,cannot conclude the median difference of the returns is greater than zero
• C)Do no reject the null hypothesis,cannot conclude the median difference of the returns is greater than zero
• D)Do not reject the null hypothesis,conclude the median difference of the returns is greater than zero

---

Definitions:

Omega

The last letter of the Greek alphabet, often symbolizing the end or last of something.

External Stimuli

Environmental factors or inputs that affect the senses and can influence behavior, reactions, and internal physiological states of an individual.

Internal Stimuli

Signals or events that originate within an organism, triggering psychological or physiological responses.

Consciousness

The state of being aware of and able to think about one's own existence, sensations, thoughts, and environment.