The final examination grades of random samples of students from three different classes are shown below.

At the $\alpha$ = .05 level of significance,is there any difference in the mean grades of the three classes?

Question

The final examination grades of random samples of students from three different classes are shown below.
  
At the $\alpha$ = .05 level of significance,is there any difference in the mean grades of the three classes?

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The Answer of The final examination grades of random samples of students from three different classes are shown below.
  
At the $\alpha$ = .05 level of significance,is there any difference in the mean grades of the three classes?

The Final Examination Grades of Random Samples of Students from Three