You're working on trying to reduce waiting times for patients. Your formal aim is to reduce the average waiting time for all patients to less than 20 minutes by next November. For a few months, you have tried different changes and dutifully gathered data on several process measures and your outcome measure, which is the average number of minutes in the waiting room per patient. You're meeting with your office team to review this graph. Upon studying it, would you say the changes the team is testing are leading to improvement? Run chart of average number of minutes in the waiting room per patient from June 12 to October 9. The goal line is at 15 minutes. Wait time goes up and down, including: June 12, 19 minutes; July 3, 28 minutes; July 24, 21 minutes, July 31, 26 minutes; August 14, 21 minutes; August 28, 21 minutes; September 11, 16 minutes; October 2, 14 minutes; October 9, 16 minutes. These points on the run chart are annotated: Dental hygienists start earlier, July 3 (28 minutes), new scheduling process, July 31 (26 minutes), improved room turnover process, August 28 (21 minutes). Yes No