# A test was conducted for two overnight mail delivery services. Two samples of identical deliveries were set up so that both delivery services were notified of the need for a delivery at the same time. The hours required to make each delivery follow. Do the data shown suggest a difference in the median delivery times for the two services? Use a .05 level of significance for the test. Service Delivery 1 2 1 24.5 28.0 2 26.0 25.5 3 28.0 32.0 4 21.0 20.0 5 18.0 19.5 6 36.0 28.0 7 25.0 29.0 8 21.0 22.0 9 24.0 23.5 10 26.0 29.5 11 31.0 30.0

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

#### Solutions

Chapter 18.2, Problem 15E
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