Final Exam$-$ In Class Version i

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$15$

C$-$Spec, Incorporated is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of $4+-0\mathrm{.}003$ inch. After a trial run on this machine, C$-$Spec has determined that the machine has a sample mean of $4\mathrm{.}001$ inches with a standard deviation of $0\mathrm{.}002$ inch.

a$.$ Calculate the capability index $(C_{pk})$ for this machine.

$3$

Note: Round your answer to $3$ decimal places.

points

$01$:$05$:$24$

Capability index

b$.$ Should C$-$Spec use this machine to produce this part?

Yes

No

Mc

Graw

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