premise: General Electric Aircraft Engines has digitally captured, and made available to design engineers, Cpk data on almost all of its manufacturing processes and it strives to have critical processes in control to a point where they will yield no more than 1 defect in 500 million parts, a Cpk of 2.0.
hypothesis: General Electric Aircraft Engines sketches out the Cpk data on a piece of paper, as they don't digitally capture it.