To Use the Wilcoxon Rank Sum Test as a Test

question 70

Multiple Choice

To use the Wilcoxon rank sum test as a test for location, which of the following conditions must we assume?

• A) that the obtained data are either ordinal or interval where the normality requirement necessary to perform the equal-variances t test ofis unsatisfied
• B) that both samples are randomly and independently drawn from their respective populations
• C) that both underlying populations from which the samples were drawn are equivalent in shape and dispersion
• D) all of (a), (b), and (c)

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Definitions:

Inputs

Resources used in the production process, including labor, technology, and materials.

Economies Of Scale

Situation in which output can be doubled for less than a doubling of cost.

Increasing Returns

A situation where the addition of more units of input results in a more-than-proportional increase in output.

Competitive Market

A market structure characterized by many buyers and sellers, such that no single party can dictate the market price.