Question: 4. How many work cycles should be timed to estimate if the maximum error is 2 seconds of the sample mean with a confidence of

4. How many work cycles should be timed to estimate if the maximum error is 2 seconds of the sample mean with a confidence of 99 percent. A pilot study yielded these times (seconds): 25, 27, 23, 28, 26, 25, 24, 28, and 23. (z=2.58)

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