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.
A JIT system uses kanban cards to authorize movement of incoming parts. In one portion of the system, a work center uses an average of 93 parts per hour while running. The manager
From the video "Barcelona Restaurant Group", determine how the same focus on quality demonstrated by the Barcelona Restaurant Group could benefit manufacturing operations. Provide
1) Bill of material errors can cause serious problems for MRP system calculations of dependant demands 2) No matter what forecasting technique is used, the probability of a prod
1. What issues are raised by this case in relation to the formulation of a service operations strategy? Answer: This example raises interesting questions relating to service str
Sample Mean Chart - Control Charts for Variables This figure depicts a typical means chart, on which sample means would be progressively plotted, left to right. Two sets of c
Briefly, identify and describe, in your own words, the different measurements used in the selection process. What are the advantages and disadvantages of each?
Question 1: Traits theories are not sufficient for explaining Leadership! i. Give an account of the other complementary Contingency theories or parts of the theories that d
A low-cost airline operating in South Africa is considering adding either Boeing 737-400 or Boeing 737-800 to its fleet. The following information is prepared for the economic eval
So what exactly is a high performance organization? Is this just another "buzz word" that American managers need to pay lip service to? Is there really any merit to having the crea
A location analysis for Temponi Controls, a small manufacturer of parts for high-technology cable systems, has been narrowed down to four locations. Temponi will need to train asse
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