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The Final Examination Grades of Random Samples of Students from Three

Question 3

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

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