Question: . LO2 9. a. Construct a control chart with Three Sigma limits for the number of scratches per 6 m 2 m stainless steel sheet

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LO2 9. a. Construct a control chart with Three Sigma limits for

LO2 9. a. Construct a control chart with Three Sigma limits for the number of scratches per 6 m 2 m stainless steel sheet based on the following data. Is the process in control? b. If a new sheet has five defects, using the control chart of part a, has the process changed? Observation Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 of scratches 2 3 1 0 1 3 2 0 2 1 3 1 20

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