8 In terms of public safety, how would the Cpk requirements for airplane parts compare to the requirements that donuts be perfectly round? It would be critical the airplane parts have a much higher Cpk than the donuts. Both products should have Cpks below .66 to avoid the risk of loss of life. It would be critical the airplane parts have a much lower Cpk than the donuts. Both products should have Cpks close to 2.0 to avoid the risk of loss of life