Which of the Following Correctly Describes the Wilcoxon Rank-Sum Test

question 178

Multiple Choice

Which of the following correctly describes the Wilcoxon rank-sum test?

• A) It is a nonparametric test based on two independent simple random samples.
• B) It is designed to determine whether the relative frequency distributions of two statistical populations of continuous values are identical to or different from one another.
• C) The Wilcoxon rank-sum test is equivalent to a parametric t-test of the difference between two independent means.
• D) All of these.
• E) None of these

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Definitions:

Demand Curve

A diagram that illustrates the connection between a product's cost and the amount of it consumers want to buy at various prices.

Substitution Effect

The change in the consumption pattern of goods or services due to a change in their relative prices, causing consumers to replace more expensive items with cheaper alternatives.

Income Effect

The change in the quantity demanded of a good resulting from a change in consumer income, holding prices constant.

Inelastic Demand

A situation where the demand for a product does not significantly change with a change in price.