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Mann–Whitney U test for independent observations. H0: the distributions of both populations are equal.
| Comparison | Mann-Whitney U test | p Value |
|---|---|---|
| Dog vs NWHR | 3327.0 | <0.0001 |
| Dog vs WHU | 41.0 | <0.0001 |
| NWHR vs WHU | 370.0 | <0.0001 |
| Dog vs Human | 3368.0 | <0.0001 |
