Table 2. Data describing combined peak pressure differences between successful and unsuccessful flake removals within the three types of stone tool production sequence examined.
| Flake removal success | n | Mean (kPa) | Median (kPa) | S.D. (kPa) | Min (kPa) | Max (kPa) | |
|---|---|---|---|---|---|---|---|
| Flake | Successful | 393 | 210.7 | 205 | 111.5 | 25 | 722.5 |
| Unsuccessful | 113 | 227.1 | 205 | 122.8 | 25 | 525 | |
| EAH | Successful | 636 | 200.5 | 188.8 | 103.7 | 22.5 | 617.5 |
| Unsuccessful | 141 | 217.5 | 212.5 | 107.1 | 20 | 535 | |
| LAH | Successful | 991 | 246.4 | 220 | 151.1 | 17.5 | 930 |
| Unsuccessful | 243 | 256.5 | 225 | 137.7 | 25 | 705 | |