Question: Spec Inc is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4+-0.007.After a

Spec Inc is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4+-0.007.After a trial run on this machine,the company has determined that the machine has a sample mean of 4.001inches with a standard deviation of 0.002 inch.

Calculate the process capability index (Keep two decimals if applicable).

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