Question 66 Determine the trial central line and control limits for the most appropriate control chart using the following data, which are for the payment of dental insurance claims. Plot the control chart and determine if the process is stable. If there are any out-of-control points, assume an assignable cause and determine the revised central line and control limits. Subgroup Number Number Subgroup Number Number Number Inspected Nonconforming Number Inspected Nonconforming 1 300 3 14 300 6 2 300 6 15 300 7 3 300 4 16 300 4 4 300 6 17 300 5 5 300 20 18 300 7 6 300 2 19 300 5 7 300 6 20 300 0 8 300 7 21 300 2 9 300 3 22 300 3 10 300 0 23 300 6 11 300 6 24 300 1 12 300 9 25 300 8 300 5 Total 7500 131 13