A test among three groups of students shows significance with respect to differences in their GPAs....

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A test among three groups of students shows significance with respect to differences in their GPAs. The mean of group 1 is 3.1, the mean of group 2 is 2.9, and the mean of group 3 is 3.4. The mean squared error is 0.8. There were 40, 35, and 20 students in each group, respectively. Test which group(s) is/are different from the others at the 0.05 significance level. The positive critical value is In testing group 1 vs group 2, the positive test statistic is This means that we should Select an answer and Select an answer In testing group 1 vs group 3, the positive test statistic is Select an answer This means that we should and Select an answer In testing group 2 vs group 3, the positive test statistic is Select an answer accept the null hypothesis that = fail to reject the null hypothesis that = reject the null hypothesis that = This means that we should elect an answer A test among three groups of students shows significance with respect to differences in their GPAs. The mean of group 1 is 3.1, the mean of group 2 is 2.9, and the mean of group 3 is 3.4. The mean squared error is 0.8. There were 40, 35, and 20 students in each group, respectively. Test which group(s) is/are different from the others at the 0.05 significance level. The positive critical value is In testing group 1 vs group 2, the positive test statistic is This means that we should Select an answer and Select an answer In testing group 1 vs group 3, the positive test statistic is Select an answer This means that we should and Select an answer In testing group 2 vs group 3, the positive test statistic is Select an answer accept the null hypothesis that = fail to reject the null hypothesis that = reject the null hypothesis that = This means that we should elect an answer