A software developer has measuredthe number of defects per 1,000 lines of code in software modulesbeing developed by the company. Construct the appropriate chart(s)for these data using 3 sigma control limits. Is the process incontrol? Why or why not?
Sample | Number of defects per 1,000 lines of code |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 5 10 11 2 6 8 12 2 7 3 6 10 9 1 4 |