Use the Wilcoxon Rank-Sum Approach to Test the Claim That

question 77

Essay

Use the Wilcoxon rank-sum approach to test the claim that the sample student grade averages at two colleges
come from populations with the same median. The sample data is listed below. Use a 0.05 level of significance,
and assume that the samples were randomly selected. $$\begin{array} { c c c c c c c c c c c c } \text { College A } & 3.2 & 4.0 & 2.4 & 2.6 & 2.0 & 1.8 & 1.3 & 0.0 & 0.5 & 1.4 & 2.9 \\\hline \text { College B } & 2.4 & 1.9 & 0.3 & 0.8 & 2.8 & 3.0 & 3.1 & 3.1 & 3.1 & 3.5 & 3.5\end{array}$$

---

Definitions:

Structuralism

An early school of thought promoted by Wundt and Titchener; used introspection to reveal the structure of the human mind.

Critical Thinking

The objective analysis and evaluation of an issue in order to form a judgment.

Pseudoscience

A collection of beliefs or practices mistakenly regarded as being based on scientific method but do not adhere to a valid scientific methodology.

Biological

Pertaining to the science of life or living matter in all its forms and phenomena, especially with reference to origin, growth, reproduction, structure, and behavior.