(a) Distribution pattern is well within limits and also centered. It shows that
ID: 372770 • Letter: #
Question
(a) Distribution pattern is well within limits and also centered. It shows that the processes are being adhered to and the specifications are met. No change needed
(b) Distibution pattern is well within limits but is not centered. Although processes are being adhered to and specifications met, the machine needs to be adjusted to give more centered datapoints
(g) Distribution pattern is well within limits and also centered. But their are two widely spaced peaks in the graphs and that shows high variation and low performing exams
(h) Distribution pattern is centered. But the results are going beyond the acceptable limits. Processes are not being adhered to and the trend doesn't show any sign of steady growth. Error may be of instrumentation calibration.
(c) Distribution pattern is npt within limits and also not centered . Processes are not as per specification. Error may be machine based or due to manual mix-up
Explanation / Answer
6· Practice being a process thinker. For the 15 distribution patterns shown below. comment on any FIVE distributions in the following manner; (1) whether or not the process has the ability to meet the specification limits, and (2) what action, if any, is appropriate to take to improve the process. As examples, for distribution (d) we could write, "The process can barely meet specifications but it is centered, so focus on distribution (k) it would be plausible to write, "Process cannot meet specifications. Sorting inspection pus an instrument error or rounding off by the inspector is occurring. Process needs to be centered." cing process variability". For Note that the "Minimum limit" and "maximum limit" are the LSL. and USL Obviously, DO NOT choose (d) or (k) since feasible answers have already been provided for those distributions. Minimum imit Maximum limit Minimum limit Maximum limit (Ae)
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