Question: Short answer. Each question is 2 points. a) What are type I type II errors on an X-bar Whats the difference between them? b) Suppose

Short answer. Each question is 2 points.

a) What are type I type II errors on an X-bar Whats the difference between them?

b) Suppose that you look at a process and note that the chart for averages has been in control. If the range suddenly and significantly increases, what may happen to the x chart?

c) In a process capability study, what important assumption is made about the data? Why is that assumption important?

Answer above given questions with appropriate explanation.

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