12.6. Consider the connector pull-off force experiment shown in Table 12.2. What main effects and interaction involving the controllable variables can be estimated with this design? Remember that all of the controllable variables are quantitative factors.

TABLE 12.2: The Design for the Connector Pull-Off Force Experiment (1) Outer Array 1 F G - - (a) Inner array Run A B CD 1 - 1 -1 - 1 - 1 15.6 9.5 16.9 19.9 19.6 19.6 20.0 19.1 -1 0 0 0 15.0 162 19.4 19.2 19.7 19.8 24.2 21.9 13 - 1 +1 +1 +1 16.3 16.7 19.1 15.6 22.6 18.2 23.3 20.4 0 -1 10 +1 18.3 174 18.9 18.6 21.0 18.9. 23.2 24.7 S 0 0 -1 19.7 18.6 19.4 25.1 25.6 214 27.5 25.3 6 0 +1 -1 16.2 16.3 20.0 19.8 14.7 19.6 22.5 24.7 - 1 +1 0 16.4 19.1 18.4 23.6 16.8 18.6 24.3 21.6 +1 0 -1 +1 14.2 15.6 15.1 16.8 17.8 19.6 23.2 24.2 +1 +1 -1 16.1 19.9 19.3 17.3 23.1 22.7 22.6 28.6 TABLE 12.2: The Design for the Connector Pull-Off Force Experiment (1) Outer Array 1 F G - - (a) Inner array Run A B CD 1 - 1 -1 - 1 - 1 15.6 9.5 16.9 19.9 19.6 19.6 20.0 19.1 -1 0 0 0 15.0 162 19.4 19.2 19.7 19.8 24.2 21.9 13 - 1 +1 +1 +1 16.3 16.7 19.1 15.6 22.6 18.2 23.3 20.4 0 -1 10 +1 18.3 174 18.9 18.6 21.0 18.9. 23.2 24.7 S 0 0 -1 19.7 18.6 19.4 25.1 25.6 214 27.5 25.3 6 0 +1 -1 16.2 16.3 20.0 19.8 14.7 19.6 22.5 24.7 - 1 +1 0 16.4 19.1 18.4 23.6 16.8 18.6 24.3 21.6 +1 0 -1 +1 14.2 15.6 15.1 16.8 17.8 19.6 23.2 24.2 +1 +1 -1 16.1 19.9 19.3 17.3 23.1 22.7 22.6 28.6