Perform a Wilcoxon Rank-Sum Test on the Two Independent Samples

question 32

Multiple Choice

Perform a Wilcoxon rank-sum test on the two independent samples shown here to see if it supports a conclusion that median 1 is larger than median 2.Select the correct critical value (CV) , test statistic (TS) , and decision.(Use α = 0.01.) ​ .

• A) CV = 54, TS = 39, reject H₀
• B) CV = 24, TS = 22, fail to reject H₀
• C) CV = 54, TS = 39, fail to reject H₀
• D) CV = 24, TS = 29, reject H₀

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Definitions:

Convenience Sample

A sampling technique where participants are selected based on their easy accessibility and proximity to the researcher.

Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact by controlling and varying variables.

Random Sampling

A method of selecting a sample from a statistical population in such a way that every possible sample has an equal chance of being chosen.

Convenience Sampling

A sampling technique where participants are selected based on their easy availability and proximity to the researcher.