An E-Business/e-Commerce Information Technology Consulting Company Wants to Compare the Effectiveness

question 22

Multiple Choice

An e-business/e-commerce information technology consulting company wants to compare the effectiveness of three programming languages that its programmers use.Currently each programming language is used by approximately 1/3 of the programmers employed by the company.The director of the programming division randomly selected 5 programmers from the users of each of the three programming languages and assigned the same simple programming task to each programmer.It is known that all three populations have highly skewed distributions with extreme outliers.Which one of the following nonparametric tests is appropriate for this problem?

• A)Wilcoxon signed rank test
• B)Wilcoxon rank sum test
• C)Sign test
• D)Kruskall-Wallis test
• E)Spearman's rank correlation test

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Definitions:

Shorelines

The boundary line where land meets a body of water, such as an ocean, sea, lake, or river, continually shaped and reshaped by dynamic natural processes.

Water Temperature

The measure of how hot or cold water is, an important physical quantity that affects the environment and life in aquatic systems.

West Antarctica

A region of Antarctica that lies west of the Transantarctic Mountains and includes the Antarctic Peninsula, characterized by its dynamic ice sheets and impact on sea-level rise.

Global Sea Level

The average height of the world's oceans' surface, used as a base for measuring elevations and the varying heights of geological features.