Kruskal-Wallis H Test JBC Company wishes to purchase one of five different machines: A, B, C, D, E. In an experiment designed to determine whether there is a performance difference between the machines, five operators each work on the machines for equal times. Table below shows the number of units produced by each machine.   A 68 72 77 42 53 B 72 53 63 53 48 C 60 82 64 75 72 D 48 61 57 64 50 E 64 65 70 68 53

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