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Statistical results of the proteins analyzed and labeled in whey protein supplements.
| Declared | Observed | |
|---|---|---|
| Samples (N) | 47 | 47 |
| Mean | 74.3% | 70.9% |
| Std. error mean | 2.22 | 1.96 |
| Median | 75.0% | 71.9% |
| Mode | 75.0% | 71.3% |
| Sum | 3493 | 3334 |
| Standard deviation | 15.2 | 13.5 |
| Minimum | 18% | 18.2% |
| Maximum | 93.0% | 92.3% |
| Shapiro–Wilk W | 0.849 | 0.842 |
| Shapiro–Wilk p | <0.001 | <0.001 |
| 25th percentile | 71.0% | 71.9% |
| 50th percentile | 75.0% | 71.9% |
| 75th percentile | 85.0% | 78.8% |
