Listed Below Are Grade Averages for Randomly Selected Students with Three

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

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H?: The three populations are identical....

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