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Data of contact angle of five groups of samples (n = 5) (mean, SD, and P values of contact angle).
| Groups | N | Mean | SD | Statistic (F) | P value |
|---|---|---|---|---|---|
| Group A | 5 | 24.816 | 5.69 | 69.247 | <0.001 |
| Group B | 5 | 40.988 | 5.77 | ||
| Group C | 5 | 80.612 | 6.23 | ||
| Group D | 5 | 48.312 | 5.76 | ||
| Group E | 5 | 52.79 | 3.48 | ||
| Total | 25 | 49.5036 | 19.26 |
