A hamburger food truck pats out hamburger patties according to weight. The target weight for a patty is 0.25 pounds. Patties weighing between 0.2 and 0.3 pounds are acceptable.
If the standard deviation is 0.015 pounds, what is the process capability index?
What is the probability of a patty being out of the specification limits? State the answer in PPM.
If the food truck wants to improve the process to achieve a Cp of 4, what would the standard deviation need to be?