Key Points Trend charts are used to see the changes throughout a process. They come in different forms like the run, control, ...

Benefits of Using X-Bar and R Charts Tampering with a process in statistical control will increase your variation and degrade ...

This chapter is concerned with two aspects of laboratory quality ... chart displays other than random variation around the expected result it suggests that something has gone wrong with the ...

Quality control (QC) is the system of checks throughout the manufacturing process to make sure each ... In a manufacturing flow chart, quality control checks are placed as decisions in diamonds ...