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.
What is the financial ratio analysis on Harley Davidson Inc 2008?
Question at the end of one of my chapters. Would like to see an example of cost and schedule performance index completed. I appreciate the help A sales-related venture had an ac
Suppose the length of critical path in a project is 40 days and the standard deviation is 2 days. What due date should be set for the project so that the probability of completing
Access how technology and the changing demands of customers have impacted the movie business. Suggest a strategy for Netflix's to prevent a new entrant into the marketplace and dem
Do you feel it's unethical for advertisers to pitch products to patients and students in this fashion? why?
In what ways do executive search firms differ from traditional employment agencies?
Alaska Power Company issued $1,000 bonds that have an annual coupon rate of 7.5%. The present market value of the bonds is $1,125. If the bonds have 15 years remaining until maturi
What are the steps for process improvement? And examples of companies that have used this.
Which company do you know of that successfully has been able to successfully or not manage its corporate structure in relation to its strategy? Explain you're rational. Cite all yo
The number of allocated cells a balanced transportation model with 3 sources and 3 destinations should have in order NOT to be degenerate is
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