DOE
SIX SIGMA
Factorial Design (DOE)
An engineer is interested in the effects of cutting speed (A),tool geometry (B), and cutting angle (C) on the life (in hours) ofa machine tool. Two levels of each factor are chosen, and threereplicates of a 23 factorial design are run. The results show theaverages of the three replicates
A | B | C | Mean |
- | - | - | 26.00 |
+ | - | - | 34.67 |
- | + | - | 39.67 |
+ | + | - | 49.33 |
- | - | + | 42.33 |
+ | - | + | 37.67 |
- | + | + | 54.67 |
+ | + | + | 42.33 |
- Estimate the factor effects. (Please showsteps)
- Which effects appear to be large?
