Question: Type I and Type II errors are important in control charts and users should pay more attention to avoid them. Please answer following questions: a

Type I and Type II errors are important in control charts and users should pay more attention to avoid them. Please answer following questions:
a) Discuss type I and type II errors relative to control charts.
b) The three-sigma control limits are used on Shewhart control charts. What risk (type I or type II) it will take if narrower control limits (e.g., one-sigma), and why? What about wider control limits (e.g., foursigma), and why?
 Type I and Type II errors are important in control charts

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