Chapter 21
Use Control Charts
In This Chapter
♦ Knowing when to let it go
♦ Calculating your limits
♦ Selecting the right chart
♦ Special Cause and Common Cause
♦ Outliers, shifts, trends, and cycles
Profound words were spoken when Yogi Berra said “You can see a lot by looking.” When you want to understand how a process is behaving, Control Charts are the best way to look. Think of it this way. Data is how a process talks to us. Control Charts are the interpreter that translates that voice of the process into information we can use.
This chapter picks up with bringing the Control Plan (end of last chapter) to life using Control Charts. We’ll show you why Control Charts are vital. We’ll also show you a little bit about how to construct Control Charts, ...
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