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

question 140

True/False

TABLE 10-5
To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. 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 10-5, one must assume that the population of difference scores is normally distributed.

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Definitions:

Positive Business Email

An email written in a professional tone, aiming to convey optimistic or affirmative messages within a business context.

Business Email

A form of electronic communication typically used for professional or commercial purposes, such as sharing information, conducting transactions, or making inquiries.

Goodwill Ending

The positive and optimistic conclusion of a communication or business correspondence, aimed at leaving a favorable impression.

Informative Messages

Communications designed to provide essential information to a specific audience.