Frank? Pianki, the manager of an organic yogurt processing plant desires a quality specification with a mean of 16.0 ?ounces, an upper specification limit of 16.5 ?ounces, and a lower specification limit of 15.5 ounces. The process has a mean of 16.0 ounces and a standard deviation of 1.25 ounce.
The process capability index ? (Cpk?) ?= _____ ?(round your response to three decimal? places).