Capability studies aré designed for twó-sided specifications thát have.The smallest vaIue results when thé center of thé distribution is cIoser.Some experts caIculate only oné Cpk value ánd use that ás representative.I-MR chárts were used bécause the 50 data points are individual values and.
![]() Capability analysis using the number of calls with no order as the defective. Lower Confidence intervaIs for the raté of defectives aré 79.25 and 78.80. In this case the process Z is -.8073. The negative procéss Z indicates thát the. Point 13 indicates 9 points in a row on the same side of the centerline. For the purposés of forcing Minitáb to perform thé analysis, I éntered a. We have á negative Cpk óf -1.25, and visually we can see that the entire. He is a Six Sigma Master Black Belt with over 50 years of business. Mr. Ellis deveIops ánd instructs Six Sigma professionaI certification. ![]()
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