Business process improvement - Statistical process control (2)

Pioneer Chicken advertises light chicken with low calories. The process average distribution for light chicken breasts is 420 calories, with a standard deviation of 25 calories. The product design calls for the average chicken breast to contain 400 calories with tolerance -/+ 80 calories.

In order to find the reason why the process is not capable of 3-sigma level of performance, what measure needs to be calculated? What is the value of that measure? What is the conclusion?

(Note: Choose the closest answer.)

Multiple Choice

• Cp = 0.80, and therefore there is too much variability..

• Cpk = 0.80, and therefore the process average is too close to a specification limit..

• Cpk = 1.07, and therefore there is too much variability..