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In: Statistics and Probability

To test for any significant difference in the number of hours between breakdowns for three machines,...

To test for any significant difference in the number of hours between breakdowns for three machines, the following dataset was obtained:

Machine 1 Machine 2 Machine 3
6.4 8.7 9.9
7.4 10.3 12.8
12.1 9.2 7.3
8.4 7.4 8.8


Choose ALL appropriate pairs of hypotheses that you would use to perform this test:

A.
B.
C.
D.

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