Crunchy Potato Chip plant sells packaged chips with a printed net weight of 846 grams. Their packaging specification limits are +/- 14 grams of this published fill weight. Currently the process is running at a mean of 852 grams with a standard deviation of 2.93 grams. The firm requires a process capability ration of at least 1.33 to be deemed "capable." Is the process capable? Is an adjustment needed?
What is the Cp and Cpk?