1. Analyze the data in Figure 11.22 and, using the appropriate control chart, determine whether the system is in control.
2. Using the data in Table 11.12, develop appropriate control charts to determine whether the coding process is under control for each doctor.
In table 11.12

3. Suggest recommendations to reduce billing errors.

Dr. Ace Dr. Beevus Dr. Carry # Bills Reviewed Correct Incorrect Reviewed Correct Incorrect Reviewed Correct Incorrect # Bills # Bills 31 25 35 38 35 24 24 28 24 19 24 23 24 31 12 37 37 28 41 30 17 19 10 31 25 24 16 26 25 24 24 10 21 25 24 12 35 13 24 24 15 36 17 34 32 18 35 19 25 25 720 14 588 12 480 432 Average 36 35.3 0.7 29.4 0,6 23.9 21.4 100 Rate