Question: . Consider the piston ring data shown in Table 5-3. Assume that the specifica- tions on this component are 74.000 + 0,05 mm. (a) Set
.
Consider the piston ring data shown in Table 5-3. Assume that the specifica-
tions on this component are 74.000 +
0,05 mm.
(a) Set up # and R control charts on this process. Is the process in statistical control?
(b) Note that the control limits on the chart in part
(a) are identical to the control limits on the f chatt in Example 5-3, where the limits were based on s. Will this always happen?
(c) Estimate process capability for the piston-ring process. Estimate the per-
centage of piston rings produced that will be outside of the specification.
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