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Author Question: A consultant has been brought in to a manufacturing plant to help apply six sigma principles. Her ... (Read 22 times)

RYAN BANYAN

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Question 1

A city police chief decides to do an annual review of the police department by checking the number of monthly complaints. If the total number of complaints in each of the 12 months were 15, 18, 13, 12, 16, 20, 5, 10, 9, 11, 8, and 3 and the police chief wants a 90% confidence level, are the complaints in control?

Question 2

A consultant has been brought in to a manufacturing plant to help apply six sigma principles. Her first task is to work on the production of rubber balls. The upper and lower spec limits are 21 and 19 cm respectively. The consultant takes ten samples of size five and computes the sample standard deviation to be .7 cm and the sample mean to be 19.89 cm. Compute Cp and Cpk for the process. Give the consultant advice on what to do with the process based on your findings.


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Marked as best answer by RYAN BANYAN on Dec 3, 2019

ricroger

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RYAN BANYAN

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Reply 2 on: Dec 3, 2019
Thanks for the timely response, appreciate it


dantucker

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Reply 3 on: Yesterday
Wow, this really help

 

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