Question: 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

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 .10 level of significance.

Service Delivery12

124.528.0

226.025.5

328.032.0

421.020.0

518.019.5

636.028.0

725.029.0

821.022.0

924.023.5

1026.029.5

1131.030.0

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