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

question 12

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 ranks test
• B)Wilcoxon rank sum test
• C)Sign test
• D)Kruskal-Wallis test
• E)Spearman's rank correlation test

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A medical condition characterized by excessive body fat accumulation, which poses a risk to health.

Caucasian

A term historically used to describe a race or group of peoples from a broad region including Europe, North Africa, the Horn of Africa, Western Asia, Central Asia, and South Asia.

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The long-term rise in Earth's average surface temperature, largely due to human activities such as burning fossil fuels, which release greenhouse gases.