Use a Kruskal-Wallis Test to Test the Claim That the Samples

question 79

Essay

Use a Kruskal-Wallis test to test the claim that the samples come from populations with equal_
medians. Listed below are grade averages for randomly selected students with three different
categories of high-school background. At the 0.05 level of significance, test the claim that the
three groups have the same median grade average. $$\begin{array}{l}\text { HIGH SCHOOL RECORD }\\\begin{array} { c c c } \text { Good } & \text { Fair } & \text { Poor } \\\hline 3.21 & 2.87 & 2.01 \\3.65 & 3.05 & 2.31 \\1.00 & 2.00 & 2.98 \\3.12 & 0.00 & 0.50 \\2.75 & 1.98 & 2.36\end{array}\end{array}$$

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Definitions:

Impaired Verbal Communication

A condition in which an individual has difficulty in expressing or receiving messages verbally, which can be due to various causes such as brain injury or illness.

Impaired Social Interaction

Difficulty or inability to engage effectively in social exchange or perform within the expected norms of social conduct.

Nonverbal Cues

Body language and other physical behaviors used to convey messages or emotions without the use of words.

Nuclear Family

A family unit consisting of two parents and their children living together as a single household.