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Ahamed Shareef's image
Question added by Ahamed Shareef Divisional Head - Quality Assurance Apollo Tyres Ltd
10 years ago

How to measure Process capabilitiy (Cp/CpK) for non-normal distribution?‎

The formulae widely used is based on Normal distributiion curve. But, we have seen processes which are completely different in terms of distribution. In those cases, how ‎ ... See More

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Question added by Shaikh Tanveer Deputy Manager Mahindra & Mahindra
8 years ago
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Question added by Noman Rajput
9 years ago
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Question added by mohammed almohtaseb Distributors Regional Manager TotalEnergies
9 years ago
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Ahmed Mohamed's image
Question added by Ahmed Mohamed Quality Manager National bottling company
11 years ago
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Question added by Shyam Kumar Asst Manager. Koyama Precison Works India Pvt Ltd
5 years ago
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Abdelkrim TRABELSI's image  
Answer added by  Abdelkrim TRABELSI, Ingénieur Projet, Zodiac
10 years ago

How is process capability (Cp, Cpk) estimated for non-normal data?     First, we should discuss some general requirements for Process Capability Indices (Cp, Cpk) 1. You ... See More

Harikiran Rao's image  
Answer added by  Harikiran Rao, MARKETING RESEARCH, AT LINK PHARMA PVT. LTD
10 years ago

Process Capability enables you evaluate non-normal process capability using:  Box-Cox power Transformation  Johnson Transformation system  Clements Method using Pearson C ... See More

Ahmad Khreasat's image  
Answer added by  Ahmad Khreasat, Risk and Quality Officer, Royal Scientific Society - Policies & Risk Dept.
10 years ago

Actually you can't use Cp and Cpk on non-normal distribution. the forrmula is based on the assumption that the distribution is normal. thats why when we explain proc ... See More

pankaj Chaudhary's image  
Answer added by  pankaj Chaudhary, Quality Control Engineer, Jbm auto
6 years ago

SPC is a widely used quality tool throughout many industries. ... By monitoring and controlling a process, we can assure that it operates at its fullest potential. ... da ... See More