Table below contains data on examination of medical insurance claims. Every day 50 claims were examined. Day Number Nonconforming 1 0 2 3 3 4 4 6 5 5 6 2 7 8 8 9 9 4 10 2 11 6 12 4 13 8 14 0 15 7 16 20 17 6 18 1 19 5 20 7 a. Set up the fraction nonconforming control chart (p-chart) for this process. Plot the preliminary data in the above table on the chart. Is the process in statistical control? b. Calculate pbar, UCLp, and LCLp. c. Assume that assignable causes can be found for any out-of-control points on this chart. What center line and control limits should be used for process monitoring in the next period? d. Draw the revised fraction nonconforming control chart (p-chart) for this process.
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