Question: How many work cycles should be timed to estimate the average cycle time to within 5 percent of the sample mean with a confidence of

How many work cycles should be timed to estimate the average cycle time to within 5 percent of the sample mean with a confidence of 90.0 percent if a pilot study yielded these times (minutes): 5.3.5.8.5.8, 51, 6.1, and 4.6? The standard deviation is 0.554 minutes per cycle. (Use the mean time" value to 2 decimal places and other values to 3 decimal places for intermediate calculations. Round up your final answer to the next whole number.) Number of work cycles

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