Question

A recent study was conducted to determine if any of three suppliers of electronic components has a different median delivery time on special orders. To test this, five orders were given to each supplier and the delivery days were recorded. These data are shown as follows:


Supplier 1 Supplier 2 Supplier 3
15 11 15
19 7 9
13 19 5
10 10 12
20 12 10

If a Kruskal-Wallis test is to be performed, the sum of the rankings for Supplier 1 is 45.

Answer

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