Good Data, Bad Data, and Process Behavior Charts
نویسنده
چکیده
In order to understand how different amounts of measurement error will affect the ability of a process behavior chart to detect process changes we shall construct some artificial data with a known structure and with known changes and see how the charts react. Let Y denote the product values. Let E denote the measurement errors. And let X denote the product measurements. Thus our model for a given measurement is:
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