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

Exercise 24

Note: Data sets for many problems in this chapter are available in the Excel workbook C09Data.xlsx on the Student Companion Site. Click the appropriate worksheet tab as noted in the problem ( e.g. Prob. 9-12, etc.) to access the data. We also recommend using the ASQ Learn about Quality Excel templates noted in this chapter to facilitate your solutions to appropriate problems.
In a DeltaWidgets, Inc. process, the production rate (parts/hour) was thought to affect the number of defectives found during a subsequent inspection. To test this theory, the production rate was varied and the numbers of defects were collected for the same batch sizes. The results can be found in the worksheet Prob. 9-17. Construct a scatter diagram for these data. What conclusions can you reach?