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

Exercise 64

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.
A gauge repeatability and reproducibility study was made at Accurate Parts, Inc., using three operators, taking three trials each on identical parts. The data that can be found in the worksheet tab Prob. 8-16 in the Excel file C08Data.xlsx on the Student Companion Site for this chapter were collected. Do you see any problems after analyzing these data? What should be done? The part specification for the collar that was measured was 1.6 ± 0.2 inches.