Calculate the OC curve of the 2.5-sigma C-chart to control the number of defects per engine...

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Calculate the OC curve of the 2.5-sigma C-chart to control thenumber of defects per engine assembly at nine. Use c values of 3,5, 7, 9, 10, 15, and 20.

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You need a cumulative poisson table forthisSo we have a c chart with 25 as the sigma value so we need tofind the control limits firstThe control limits of a 25 sigma chart would be found byc was chosen as 9 because the number of defects per engineassembly has to be kept at 9 and it was taken as the mean value ofthe number of defects for n number of    See Answer
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