Table 9 Calculation results of T-statistic
Batch | A1 | A2 | … | A15 | Model | Mean | Standard deviation | \({\overline{\overline X} _j}\) | T |
|---|---|---|---|---|---|---|---|---|---|
1 | 8.691 | 9.571 | … | 13.672 | S1 | 9.761 | 2.880 | – | 0.000 |
2 | 4.366 | 7.135 | … | 12.973 | S1 | 8.576 | 3.340 | 9.761 | − 0.561 |
3 | 7.978 | 4.715 | … | 16.948 | S1 | 9.695 | 3.410 | 9.168 | 0.282 |
4 | 5.918 | 5.205 | … | 16.890 | S1 | 8.731 | 3.991 | 9.344 | − 0.298 |
5 | 5.310 | 7.491 | … | 14.223 | S2 | 9.871 | 2.244 | – | 0.000 |
6 | 6.066 | 6.595 | … | 15.688 | S2 | 10.365 | 2.787 | 9.871 | 0.281 |
7 | 4.178 | 7.442 | … | 12.792 | S2 | 9.981 | 2.216 | 10.118 | − 0.113 |
8 | 6.866 | 7.177 | … | 11.604 | S2 | 9.391 | 1.747 | 10.072 | − 0.755 |