Frank$$ Pianki, the manager of an organic yogurt processing plant desires a quality specification with a mean of $20\mathrm{.}0$ounces$,$ an upper specification limit of $20\mathrm{.}5$ounces$,$ and a lower specification limit of $19\mathrm{.}5$ ounces. The process has a mean of $20\mathrm{.}0$ ounces and a standard deviation of $1\mathrm{.}5$ ounce.$$

Part $2$

The process capability index $($Csubsriptpk$)=$

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enter your response here $($round your response to three decimal$$ places$).$