Statistical Design of Experiments
Statistical Design of Experiments
L
L
9
9
Orthogonal Array
Orthogonal Array
(3 Level Array)
(3 Level Array)
Column Number
1
2
3
4
1
1
1
1
1
2
1
2
2
2
3
1
3
3
3
4
2
1
2
3
5
2
2
3
1
6
2
3
1
2
7
3
1
3
2
8
3
2
1
3
9
3
3
2
1
Single columns can be
used for Input Factors,
or more than 1 column
must be used for a
single 2-way interaction