Difference in the median delivery times

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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 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

Reference no: EM131468854

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