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Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best? Which machine is the worst? You are to perform a thorough and complete analysis of the data. Use alpha = .05 for all tests.

Machine 1   Machine 2   Machine 3   Machine 4
6.4                 8.7               11.1           9.9
7.8                 7.4               10.3          12.8
5.3                 9.4                9.7           12.1
7.4                10.1              10.3          10.8
8.4                 9.2                9.2            11.3
7.3                 9.8                8.8            11.5

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