Question: a. Construct a control chart with Three Sigma limits for the number of defects per spool of cable based on the following data. Is the

a. Construct a control chart with Three Sigma limits for the number of defects per spool of cable based on the following data. Is the process in control?
b. If a new spool has five defects, using the control chart of part a, has the process changed?

Observation 1 2 3 4 5 6 7 8 9 10 1 12 13 14 Number of defects2 3 1 0 13 2 0 2 1 3 1 2 O

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