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Final exam scores for a sample of 20 students in

Final exam scores for a sample of 20 students in a managerial accounting class are shown.

(a) At α = .05, is there a difference in the population median scores on the two exams? Make an Excel worksheet for your Wilcoxon signed-rank test calculations and check your work by using MegaStat or a similar computer package.

(b) Perform a two-tailed parametric t test for paired two-sample means by using Excel or MegaStat. Do you get the same decision?

(a) At α = .05, is there a difference in the population median scores on the two exams? Make an Excel worksheet for your Wilcoxon signed-rank test calculations and check your work by using MegaStat or a similar computer package.

(b) Perform a two-tailed parametric t test for paired two-sample means by using Excel or MegaStat. Do you get the same decision?

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