Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Process Capability Index - Asymmetrical Positioning of the Process
As stated earlier, the Cp index assumes that the process mean is centred within the tolerance band, but, in practice, this is often an unreasonable assumption. For this reason, alternative indices have been devised which take account of asymmetrical positioning of the process mean relative to mid-tolerance. Consider the process output represented in this next figure, for which the LSL is 10, the USL is 20, the process mean (µ) is 18 and the standard deviation (σ) is 1.166. For this process the Cp index value is 1.43 [i.e. (20 - 10)/ (6 × 1.166)], which might suggest that the output has a very low level of non-conformance. However, as can be seen from the figure, a significant proportion of the output actually lies beyond the upper specification limit. The Cpk index takes account of the asymmetry by relating the spread of one side of the output distribution (3σ) to the difference between the process mean (µ) and the nearest specification limit. Two calculations are performed, and the lowest value (worst case) is taken as the index value.
In the example in the figure above, the Cpk index is 0.57 [ie (20 - 18)/(3 × 1.166)], indicating that the process, as currently set, is not capable of producing to the design specification. The following figure shows the significance of different Cpk values.
Heather Adams, production manager for a Colorado exercise equipment, needs to schedule an order for 50 Ultimate Steppers, which are to be shipped in week 8. Subscripts indicate qua
Explain Production in terms of management. Production is any procedure or process developed to transform a set of input elements as men, capital, materials, energy and inform
Another name for a cause-and-effect diagram is which of the following? Histogram Run chart Check sheet Fishbone diagram
Why was the proposed change controversial?
Respondeat superior is the theoretical basis for holding companies criminally liable for actions of their employees. Companies oftentimes have little defense against prosecution. C
Henry Goldstone, head of Human Resources for African Gold, Inc. in South Africa, examined the stack of newspaper and business magazine clippings on his desk. In the last few weeks
Overview: This case explores the mission to become a major player in the global personal computer industry. Lenovo acquired IBM%u2019s personal computer division in 2004 to become
Assume that the risk-free rate is 7.0% and the expected return on the market is 8%. What is the required rate of return on a stock with a beta of 1.4? Round your answer to two deci
Why do organizations need to calculate a threshold for a reorder? How could this affect sales?
Describe an approach to a business diversity program that would pragmatic and ethical
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd