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. $$\begin{array}{l}
\text { HIGH SCHOOL RECORD }\
\begin{array} { | l | }
\hline \text { Good FairPoor } \
3.212 .872 .01 \
3.653 .052 .31 \
1.002 .002 .98 \
3.120 .000 .50 \
2.751 .982 .36 \
\hline
\end{array}
\end{array}$$

Question

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. $$\begin{array}{l}
\text { HIGH SCHOOL RECORD }\
\begin{array} { | l | } 
\hline \text { Good FairPoor } \
3.212 .872 .01 \
3.653 .052 .31 \
1.002 .002 .98 \
3.120 .000 .50 \
2.751 .982 .36 \
\hline
\end{array}
\end{array}$$

Quizplus · Accepted Answer

The Answer of 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. $$\begin{array}{l}
\text { HIGH SCHOOL RECORD }\
\begin{array} { | l | } 
\hline \text { Good FairPoor } \
3.212 .872 .01 \
3.653 .052 .31 \
1.002 .002 .98 \
3.120 .000 .50 \
2.751 .982 .36 \
\hline
\end{array}
\end{array}$$

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