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

Exercise 50

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.
Construct an np -chart using the data in Prob. 8-45 in the C08Data.xlsx file on the Student Companion Site for this chapter from Delgado Manufacturing Co. What does the chart show?