Consider the control chart shown here. Does the pattern appear random?
Answer to relevant QuestionsConsider the control chart shown here. Does the pattern appear random? The thickness of a printed circuit board is an important quality parameter. Data on board thickness (in inches) are given in Table 5E.1 for 25 samples of three boards each. b. Estimate the process standard deviation. c. ...Reconsider the data presented in Exercise 5.26. b. Does the S chart detect the shift in process variability more quickly than the R chart did originally in part (b) of Exercise 5.26? a. Estimate the process standard deviation. a. Estimate the potential capability of the process. b. Estimate the actual process capability. c. How much improvement could be made in process performance if the mean could be centered at the nominal value?
Post your question