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Business, 10.12.2019 07:31 suepath2844

The overall average on a process you are attempting to monitor is 50 units. the average range is 4 units. the sample size is 5. what are the upper and lower control limits of a 3 sigma mean chart. a. ( i already did this)upper control limit is 52.31 and the lower is 47.69.b. what are the upper and lower control limits of 3 sigma range chart? ?

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