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+- .003. 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 .002 inch.

(a)calculate the Cpk for this machine (b) Should C-spec use this machine 5o produce this part? Why?