Augsburg Engineering has installed a new injection molding system for making plastic water bottles on its production line. Your process engineering department has conducted experiments and determined that the line is yielding a mean of 8.01 grams with a standard deviation of 0.03. Your production specifications are μ = 8.0 and σ = 0.045. Since variability exists, Edwards Engineering is willing to accept bottles at a 3σ level of quality.
What is the USL and LSL?
What is the Cpk performance of the injection system?
How capable is the process?
How do I find each?