Question: The initial data provided in the Excel workbook C 0 8 Problem Data represent processing time values for 2 0 samples of size 4 that

The initial data provided in the Excel workbook C08 Problem Data represent processing time values for 20 samples of size 4 that were taken from Rapid Check Kiters, Inc., a check processing firm, over a 20-hour period.
a. Use the X-bar&R Excel template to determine if the process is under control. If not, remove any special cause data and recalculate the con- trol limits.

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