28. A local firm creates large metal shafts for use in pumps. The customer receiving the shafts inspects them for defect

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28 A Local Firm Creates Large Metal Shafts For Use In Pumps The Customer Receiving The Shafts Inspects Them For Defect 1 (45.74 KiB) Viewed 51 times

28. A local firm creates large metal shafts for use in pumps. The customer receiving the shafts inspects them for defects such as nicks, scratches, and other abrasions. Because of careful packing, most of the shafts arrive safely with no damage. Damaged shafts must be reworked (reground) before being used. Both the cus- tomer and the supplier keep track of this information in order to judge the effectiveness of their packaging methods and shipping firms. Regardless of the num- ber of shafts that are shipped in the boxes, each box is considered one unit. Create the control limits and centerline for a c control chart to monitor the past 10 shipments. How is the process performing? Should the company reexamine their methods? Defects 1 2 1 0 01 00 0 1 00 0 31