Question: Problem 6: Short Answers to Conceptual Questions (15 Points) Problem 6.1: (7 Points) In SPC, why is it that the sample size of a subgroup

Problem 6: Short Answers to Conceptual Questions
Problem 6: Short Answers to Conceptual Questions (15 Points) Problem 6.1: (7 Points) In SPC, why is it that the sample size of a subgroup is usually at least 4, 5 or 6? You can focus on the X Chart. Explain in up to two sentences. Problem 6.2: (8 Points) In the context of variable control charts, use your own words to describe Type I error, Type II error, in-control ARL, and out-of-control ARL? *

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