Question 1 Chapter 3: Dr. Patel is concerned about the long wait times in his ofce. The following table presents six random observations for the patient waiting times over a period of 12 days. Observations (mins) 3 4 1 2 3 4 5 6 7 8 9 IIIIII NilC) a) Dr. Patel is willing to use threesigma limits. Use the given data and the factors from Table 3.1 (page 110) to construct Rchart and J'schart. b) Interpret your charts. c) The patient surveys indicate that they are willing to wait between 15 and 35 minutes before seeing Dr. Patel. Calculate the process capability index and capability ratio at the three-sigma level. Is the process capable of meeting this demand at the three-sigma level