3. Explain how the standard deviation of the effective process time can exceed the mean time.

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The following sets of numbers are the interoutput times (minutes) from a machine. Which one is the

best instance representing the described behavior of that machine? Why?

i: 6, 6, 6, 6, 6, 6, 6, 6, 6, 6

ii: 6.1, 5.8, 4.3, 6.3, 7, 5.2, 6.4, 6.8, 5.9, 6.5

iii: 6, 6, 6, 38, 6, 6, 6, 6, 6, 45

iv: 12, 0, 0, 0, 0, 0, 0, 12, 0, 0

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