Question: A quality analyst warts to construct a nample mean chart for controling a packaping process. He knows from past axpedence that the process standard devation

A quality analyst warts to construct a nample mean chart for controling a packaping process. He knows from past axpedence that the process standard devation is 1.13 ounces. Ench dey last week, he randomly selected four packiges and weighed each. The data from that activity appear below. (ik) Calcuiate ail zample meare by dey and the reses of at ssmple mesht. (0) Cuicilehe upper and iower 3 -tigma x-bar chant coctrel limits that allow for natural variations. (d) Based on the x.bas chant, is this pecoess in oontrol

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