TABLE 10-5
to Test the Effectiveness of a Business School

question 43

Multiple Choice

TABLE 10-5
To test the effectiveness of a business school preparation course, 8 students took a general business test before and after thecourse. The results are given below
$$\begin{array}{l}\quad \quad \quad \quad \quad \quad \quad \quad \text { Exam Score } \quad \text { Exam Score }\\\begin{array} { c c c } \text { Student } & \text { Before Course (1) } & \text { After Course (2) } \\\hline 1 & 530 & 670 \\2 & 690 & 770 \\3 & 910 & 1,000 \\4 & 700 & 710 \\5 & 450 & 550 \\6 & 820 & 870 \\7 & 820 & 770 \\8 & 630 & 610 \\\hline\end{array}\end{array}$$

-Referring to Table 10-11, if the firm wanted to test whether a greater proportion of workers would currently like to attend a self-improvement course than in the past, which represents the relevant hypotheses?

• A) \( H_{0}: \pi_{1}-\pi_{2} \leq 0 \) versus \( H_{1}: \pi_{1}-\pi_{2}>0 \)
• B) \( H_{0}: \pi_{1}-\pi_{2} \neq 0 \) versus \( H_{1}: \pi_{1}-\pi_{2}=0 \)
• C) \( H_{0}: \pi_{1}-\pi_{2}=0 \) versus \( H_{1}: \pi_{1}-\pi_{2} \neq 0 \)
• D) \( H_{0}: \pi_{1}-\pi_{2} \geq 0 \) versus \( H_{1}: \pi_{1}-\pi_{2}<0 \)

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Definitions:

Corpus Callosum

The large band of neural fibers connecting the two hemispheres of the brain and facilitating interhemispheric communication.

Split Brain

A condition, often resulting from surgery to treat epilepsy, where the two hemispheres of the brain are disconnected, affecting communication between them.

Prefrontal Lobotomy

A surgical procedure used in the past to treat certain mental disorders, involving the removal or severing of connections to the prefrontal cortex.

Mendel

Gregor Mendel, an Augustinian monk and scientist, is known as the father of genetics for his work on pea plant inheritance.