Assume that Figure 19-4 is the before diagram for the Billing department. Further assume that the after results are as follows: Activity Process Denied Bills Review with Supervisor Locate Documentation Copy Documentation Activity Code PDB RWS LD CD Required 1. Redo the Pareto diagram with the after results. (Use Figure 19-4 as a guide.) 2. Comment on the before and after results for the Billing department. Number 12 10 6 5 33 Number 40 30 20 20 10 0 PDB RWS Activity No. % PDB 22 51 RWS 10 23 LD 6 14 CD 5 12 43 100% 100% 51% Key to Activity Codes PDB = Process Denied Bills RWS = Review with Supervisor = Locate Documentation LD = Copy Documentation LD CD CD Figure 19-4 Pareto Analysis of Billing Department Data.