Table below contains data on examination of medical insurance claims ...

        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.