C-Spec, Inc., is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4 ± 0.003 inches. After a trial run on this machine, C-Spec has determined that the machine has a sample mean of 4.001 inches with a standard deviation of 0.0004 inch. a. Calculate the Cpk for this machine. (Round your answer to 3 decimal places.) Cpk b. Should C-Spec use this machine to produce this part? Yes No

Practical Management Science
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Author:WINSTON, Wayne L.
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C-Spec, Inc., is attempting to determine whether an existing machine is capable of
milling an engine part that has a key specification of 4 ± 0.003 inches. After a trial run on
this machine, C-Spec has determined that the machine has a sample mean of 4.001
inches with a standard deviation of 0.0004 inch.
a. Calculate the Cpk for this machine. (Round your answer to 3 decimal places.)
Cpk
b. Should C-Spec use this machine to produce this part?
O Yes
O No
Transcribed Image Text:C-Spec, Inc., is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4 ± 0.003 inches. After a trial run on this machine, C-Spec has determined that the machine has a sample mean of 4.001 inches with a standard deviation of 0.0004 inch. a. Calculate the Cpk for this machine. (Round your answer to 3 decimal places.) Cpk b. Should C-Spec use this machine to produce this part? O Yes O No
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