5 pts D Question 2 Which best explains "why six sigma"? The "six" means you should have no more than 6 errors per million opportunities. O Six comes from the number of steps in the improvement cycle. Standard says the specification should be at least six sigma away from process average. O Standard says the USL-LSL should be equal to 6 standard deviations. Question 3 5 pts The "sigma level" for defects can be calculated using which distribution? O Exponential O Poisson O Binomial O Normal