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Reconsider the situation described in Exercise 81 of Chapter 9 and the accompanying Minitab output (the Greek letter eta is used to denote a median).

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Reconsider the situation described in Exercise 81 of Chapter 9 and the accompanying Minitab output (the Greek letter eta is used to denote a median).

Mann-Whitney Confidence Interval and Test good poor Point estimate for ETA1-ETA2 is 95.9 Percent CI for ETA1-ETA2 is ( )

Test of vs is significant at 0.0027

a. Verify that the value of Minitab’s test statistic is correct.

b. Carry out an appropriate test of hypotheses using a significance level of .01

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