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Question $4,$

Problem $6$s$.43$

HW Score: $75\%,3$ of

Part $4$ of $4$

$4$ points

Points: $0$ of $1$

The specifications for a plastic liner for a concrete highway project calls for thickness of $5\mathrm{.}0mm+-0\mathrm{.}12mm.$ The standard deviation of the process is estimated to be $0\mathrm{.}02mm.$

The upper specification limit for this product $=mm($round your response to three decimal places$).$

The lower specification limit for this product $=mm($round your response to three decimal places$).$

The process is known to operate at a mean thickness of $5\mathrm{.}0mm.$ The process capability index $(C_{pk})=2($round your response to three decimal places$).$

The upper specification limit lies about standard deviations from the centerline $($mean thickness$).$