Construct a cause-and-effect diagram that identifies the possible causes of consistently bad coffee from a large-capacity office coffee pot.
Answer to relevant QuestionsDevelop a flowchart for the process that you follow every morning from the time you awake until you arrive at your workplace (or school). Identify the value-added and non-value-added activities. Discuss the logic underlying the use of three-sigma limits on Shewhart control charts. How will the chart respond if narrower limits are chosen? How will it respond if wider limits are chosen? Consider the piston ring data shown in Table 6.3. Assume that the specifications on this component are 74.000 0.05 mm. (a) Set up x and R control charts on this process. Is the process in statistical control? (b) The ...Reconsider the data presented in Exercise 6.21. (a) Rework both parts (a) and (b) of Exercise 6.21 using the x and s charts. (b) Does the s chart detect the shift in process variability more quickly than the R chart did ...An x chart is used to control the mean of a normally distributed quality characteristic. It is known that σ = 6.0 and n = 4. The center line = 200, UCL = 209, and LCL = 191. If the process mean shifts to 188, find the ...
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