Managing for Quality and Performance Excellence 9th Edition by James Evans,William Lindsay

Exercise 55

Note: Data for many of the problems in this chapter can be found in the Excel workbook C08Data.xlsx on the Student Companion Site. Click on the appropriate worksheet tab as noted in the problem (e.g., Prob. 8-6, etc.) to access the data.
Federal Scanline, Inc. uses a scanner on a conveyor line which scans 1,000 packages per hour. Packages which have defective labels or detectable damage to the package are automatically offloaded and hand-sorted by severity of defects, on a scale of 1-5. A minor defect is a 1, such as a single number missing from a zip code. A 3 would be a moderate defect, such as a missing addressee name or partially missing address. A 5 would be a critical defect, such as a severely damaged package or missing address label. Construct a c -chart for the 30 samples showing critical defects from the data in the table in the worksheet Prob. 8-46 in the C08Data.xlsx file and interpret the results.