Part 1
A regional airline is concerned about its on-time performance.The Memphis hub experiences 20 flight operations each day of theweek, with the following record of on-time departures for theprevious 10 days: 17, 16, 18, 19, 16, 15, 20, 17, 18, and 16.Prepare a p-chart with a sample size consisting of one week’saverage on-time percentage.
| a. | UCL = .86, LCL = 0 |
| b. | UCL = .93, LCL = 0 |
| c. | UCL = 1, LCL = .47 |
| d. | UCL = 1.25, LCL = .47 |
| e. | None of the above |
Part 2.
A process is considered to be out of control when:
| a. | Sample measurements show wide variance. |
| b. | A measurement falls outside the control limits. |
| c. | The sample mean is above the population mean. |
| d. | Sample measurements follow a distinct pattern within the controllimits. |
| e. | None of the above. |
Part 3.
In a service firm, which of the following would be an example ofa prevention cost?
| a. | Inspection |
| b. | Process control |
| c. | Collecting quality data |
| d. | Recruitment and selection |
| e. | Scrapped forms and reports |
Final Part.
Doing work incorrectly is an example of a:
| a. | Task error |
| b. | Tangible error |
| c. | Resolution error |
| d. | Encounter error |
| e. | Treatment error |
