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

question 62

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.
$$\begin{array}{l}\quad \quad \quad \quad \quad \quad \quad \quad \text { Exam Score } \quad \text { Exam Score }\\\begin{array} { c c c } \text { Student } & \text { Before Course (1) } & \text { After Course (2) } \\\hline 1 & 530 & 670 \\2 & 690 & 770 \\3 & 910 & 1,000 \\4 & 700 & 710 \\5 & 450 & 550 \\6 & 820 & 870 \\7 & 820 & 770 \\8 & 630 & 610 \\\hline\end{array}\end{array}$$
-Referring to Table 10-5, at the 0.05 level of significance, the decision for this hypothesis test would be

• A) reject the null hypothesis.
• B) reject the alternative hypothesis.
• C) do not reject the null hypothesis.
• D) It cannot be determined from the information given.

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Definitions:

Pneumoconiosis

A type of lung disease caused by the inhalation of dust, leading to inflammation and scarring of the lung tissue.

Malignant Tumor

A type of cancerous growth capable of invading other parts of the body and potentially leading to serious health risks or death.

Serous Membrane

A thin layer of tissue that lines certain internal cavities of the body, secreting a fluid that lubricates organ surfaces.

Inflammation

A biological response to injury or infection, leading to redness, heat, swelling, and pain in the affected area.