To Test the Effectiveness of a Business School Preparation Course,8

question 108

Multiple Choice

To test the effectiveness of a business school preparation course,8 students took a general business test before and after the course.Suppose the before and after exam scores are both normally distributed.Which of the following tests will be the most appropriate?

• A)Pooled-variance t test.
• B)Paired t test.
• C)Wilcoxon rank sum test.
• D)Kruskal-Wallis rank Test.

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Definitions:

Ozone

Ozone is a triatomic molecule, consisting of three oxygen atoms, known for its sharp smell and its role in the Earth's stratosphere, where it absorbs the majority of the sun's harmful ultraviolet radiation.

Dimethyl Sulfide

A sulfur-containing organic compound with the formula (CH3)2S, notable for its foul smell and role in the global sulfur cycle.

Regio-

A prefix used in chemistry to indicate the region or specific location within a molecule where a reaction takes place.

Stereochemical

Relating to or involving the study of the spatial arrangement of atoms within molecules and its influence on the chemical and physical properties of a substance.