1. If the upper weight limit of a product is 465g and the lower limit is 445g, with a standard deviation of 1.35 and an average weight of 454g, calculate the process capability index, and state whether the process is capable if a six-sigma performance is being targeted.
2. In an effort to determine the capability of a process, an operations manager has found that the results of the process capability index lie outside the acceptable range. Further tests using the process capability ratio also yield unacceptable results. What should management do in this situation.