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Statistical Process Control

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Please see the attached file for a statistical process control problem.

3) (Use for following for the next two questions) Consider the following data on defective speech
systems manufactured for the new line of Psychic Furbys:

a). What is the correct center line for a p-chart based on this data?
Answer: ________________________

b) What is the correct UCL for a p-chart based on this data, with Z=3?
Answer: ________________________

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The solution looks at a statistical process control (SPC) problem: p-chart

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