Skip to main content
. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Polym Eng Sci. 2019 Mar 30;59(6):1146–1157. doi: 10.1002/pen.25094

Table 2.

The 18-run split-plot I-optimal design.

Run X1 (%) X2 (%) X3 (°C)a
1 13 0 −10
2 7 30 −10
3 10 15 −10
4 10 15 −10
5 10 15 −10
6 7 0 −10
7 13 30 −10
8 10 15 −10
9 10 30 −20
10 13 30 −20
11 7 15 −20
12 10 0 −20
13 10 0 0
14 13 30 0
15 7 15 0
16 10 30 0
17 13 15 0
18 7 0 0
a

The hard-to-change factor