PN — H1 (triage): qwen2.5:3b + contextual-anchoring (F1 0.5894) statistically…
H1 (triage): qwen2.5:3b + contextual-anchoring (F1 0.5894) statistically beats a no-information majority-class baseline (acc 0.25) with Wilcoxon p=6.9e-13, r=-0.51, N=200, so H0 is REJECTED; but this only proves above-chance, not beating a competitive heuristic.
Source: puma docs/results/h1_triage_wilcoxon.md · Traceability: corpus unit
PUMA-021· Confidence: repo-backed