Mann-Whitney U-Test Name: Rating: Course: School: USE THE 7 STEPS 0F TESTING THE HYPOTHESIS Make an analysis of the situation below using the appropriate statistical tool. 1. The following data represent the number of hours that two different types of machines operate in the la oratory before a next patient is entertained. Machine A 5.5 5.6 6.3 4.6 5.3 5.0 6.2 5.8 5.1 Machine 8 3.8 4.8 4.3 4.2 4.0 4.9 4.5 5.2 4.5 Use a = 0.01 to determine if machine A operates longer than machine 8 on a full operation . 2. The following data represent the weights. in kilograms, of personal luggage carried on various flights by a nurse's team and a member of a doctor's team for a medical mission Luggage Weight (kilograms) Doctors 16.3 18.1 18.6 15.4 15.6 18.3 17.4 14.8 16.5 1 5.4 1 7.7 12.7 14.1 15.0 15.9 Use the Mann-Whitney U test with o = 0.05 to test the null hypothesis that the two teams carry the same amount of luggage on the average against the alternative hypothesis that the average weights of luggage for the two teams are different