30 Section 4 REVENUE MANAGEMENT ASE 4-12 Case Mix Index Investigation : The chief financial officer (CFO) just called. H e was supposed to have asked you to get him the CMI for 2015 2016, and 2017 a month ago. He has just realized that he never asked you for the data. He must have it for the board of directors meeting that takes place in three hours, but he actually needs the information in an hour so that it can be copied and placed in the packet for the board members. He needs you to create a bar graph to show the trending. He also needs you to provide an analysis of the trends so that he can report it to the board. : : 1. Use the information in Table 4-10 to make a line graph of the CMi for calen dar years 2015,2016, and 2017 2. What trends can you identify in the data? 3. Can you identify any cause for concern? 4. What investigation would you want to conduct