TABLE 10-5 To Test the Effectiveness of a Business School Preparation Course

question 26

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 the course. The results are given below.
Exam Score Exam Score
Student Before Course (1) After Course (2)
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
-Referring to Table 10-5, what is the critical value for testing at the 5% level of significance whether the business school preparation course is effective in improving exam scores?

• A) 2.365
• B) 2.145
• C) 1.761
• D) 1.895

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Definitions:

Real Interest Rates

The interest rate adjusted for inflation, representing the true cost of borrowing and the true yield on an investment.

Irving Fisher

An American economist known for his contributions in the fields of economics and statistics, including the theory of interest and the Fisher equation.

Proprietors' Income

The income earned by the owners of unincorporated businesses.

Capitalist Income

The earnings from capital investment, including profits, interest, and dividends, attributed to owners in a capitalist economy.