Use the Following Table to Answer the Question(s) Below

question 95

Multiple Choice

Use the following table to answer the question(s) below.

-A machine shop owner wishes to monitor the diameter of an engine boring operation where the piston bore should be 4.25". He obtains 8 samples of 5 and records the data in the table above. What should the center line be for a chart that monitors process dispersion?

• A) 0.50
• B) 0.55
• C) 0.60
• D) 0.69
• E) 0.80

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