Question $3(3$ points$)$

The specifications for a manifold gasket that installs between two engine parts calls for a thickness of $2\mathrm{.}750mm+-\mathrm{.}025mm.$ The process is currently operating at a mean thickness of $2\mathrm{.}75mm.$ The standard deviation of the process is estimated to be $0\mathrm{.}007mm.$

Calculate the relevant process capability, and it is equal to $($round to $3$ decimal places$)$:

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