Suppose you have the following check sheet results for a product with 5 requirements per unit produced (Requirement Categories are A,B,C,D,E where a unit may fail 1 or more requirement categories). Based on the information provided below, which of the following would be the most appropriate Six Sigma metric if you wanted to compare this product (with 5 requirements) with another product that only has 3 requirements ?

UNIT A B C D E # of defects per unit

1 0 0 0 0 0 0

2 1 1 1 0 0 3

3 1 0 0 1 1 3

4 0 0 1 0 0 1

Group of answers

a. PPM defective

b. Mean

c. DPMO

d. 6* Standard Deviation