Dr. Frankal is concerned about the long wait times in his Vet office.
The following table presents six
random observations for the patient waiting times over a period of 10 days.
- Construct R-chart and -chart.
- Is the process in statistical control? Explain.
- If patient surveys indicate that they are willing to wait between 10 and 30 minutes before seeing Dr. Patel, is the process capable of meeting this demand at the three-sigma level?