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

question 13

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. $$\begin{array} { | c c c | } \hline { \text { HIGH SCHOOL RECORD } } \\\text { Good } & \text { Fair } & \text { Poor } \\3.21 & 2.87 & 2.01 \\3.65 & 3.05 & 2.31 \\1.00 & 2.00 & 2.98 \\3.12 & 0.00 & 0.50 \\2.75 & 1.98 & 2.36 \\\hline\end{array}$$

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Definitions:

Germany Surrendered

Refers to the act of Nazi Germany formally ceasing hostilities and surrendering to the Allies, marking the end of World War II in Europe on May 8, 1945.

Pearl Harbor

The site of a surprise military strike by the Japanese Navy Air Service upon the United States against the naval base at Pearl Harbor in Honolulu, Hawaii, on December 7, 1941, leading the United States into World War II.

Turning Point

A pivotal moment in time that represents a significant change or shift in direction in historical, cultural, or personal narratives.

World War II Europe

The European theater of World War II, a global conflict lasting from 1939 to 1945 involving most of the world's nations including all the great powers.