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Western Electric runs rule

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See attached for data.

1. A Lean Six Sigma black belt project results in a lower defective rate at the final inspection of a plastic molded component. Thirty days of data presented in the following table.

(a) Create the appropriate control chart for the improved process. Apply only Western Electric runs rule 1 for determining non-random patterns. Assume any p estimate that violates Western Electric runs rule 1 has an assignable cause, omit it from the next control limit estimate, and repeat this process plotting a control chart until all p estimates are in control.

(b) Based on the characteristics of the Phase 1 control chart, discuss the design of a control chart for Phase 2 future production.

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The expert examines Western Electric runs rule. An appropriate control charts for the improved process is determined.

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Please see the 2 p charts in the mintab file

1. A Lean Six Sigma black belt project results in a lower defective rate at the final inspection of a plastic molded component. Thirty days of data presented in the following table.
a) Create the appropriate control chart for the improved process. Apply only Western Electric runs ...

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