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.
Select an active Engineering Company, performing a brief research quote the company's mission statement, list 3 current strategies of the company and discuss how they are in alignm
Question: (a) "Teams definitely are forms of work groups, but not all work groups are teams". Work groups function on three levels: Dependent level, Independent level and Inter
How is foreign domestic investment confidence index useful to businesses?
Creation of a Microsoft Project File Follow the instructions below to create a small project file to submit to your instructor. Instructions: Load Microsoft Office Project 2007 "tr
Kelly Trucking, Inc., is planning a new warehouse to serve the western United States. Denver, Santa Fe, and Salt Lake City are under consideration. For each location, annual fixed
You have a lease on an oil and gas property with 87.5% NRI that delivers your firm annual profits of $400,000 for five years, with equal production in each year (you will need to t
Siting Departments for Process Layout - Service Operations In determining the relative position of service departments the costs of movement may be less important than other,
Measurement of customer engagement through the feedback process helps the organization in all of the following EXCEPT- discover customer perceptions of how well the organization
1. What factors have limited the ability of local law enforcement agencies to respond to the growing threat of computer crime? Answer A. lack of training B. lack of diagnostic equi
Which of the following probability distributions cannot be simulated ?
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd