Question: a . Set up the fraction nonconforming control chart for this process. Use the variable - width control limit approach. Plot the preliminary data in

a. Set up the fraction nonconforming control chart for this process. Use the variable-width control limit approach. Plot the preliminary data in Table 7E.2 on the chart. Is the process in
statistical control?
b. Assume that assignable causes can be found for any out-of-control points on this chart. What center line should be used for process monitoring in the next period, and how should the control
limits be calculated?
 a. Set up the fraction nonconforming control chart for this process.

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