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

question 36

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:

Complements in Production

Goods that are produced together in the production process; an increase in the production of one leads to an increase in the production of the other.

Wage

The fixed regular payment, typically calculated on an hourly, daily, or piecework basis, made by an employer to an employee for their labor.

Marginal Revenue Product Curve

A curve showing the additional revenue a firm earns by employing one additional unit of input, holding other factors constant.

Competitive Seller

A seller in a competitive market who takes the market price as given and whose output decision does not affect the market price.