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

question 42

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 five 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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Definitions:

Goods Sold

Refers to the products that have been sold and delivered to customers during a specific period.

Predetermined Overhead Rate

A rate used to apply manufacturing overhead to products, calculated at the beginning of the period based on estimated costs and activity levels.

Direct Labor-Hours

The total hours worked by employees who are directly involved in the manufacturing process or providing a service.

Manufacturing Overhead

All indirect costs associated with the production process, such as utilities, indirect labor, and materials.