Result Detail – Mann Whitney Help
Result Information
- Result ID
- 187
- Type
- Mann Whitney
- Status
- completed
- Dataset ID
- 706
- Created
- 2026-09-21 02:16:42.978151
Statistical Test Result Help
- Test
- mann whitney — two-sided — asymptotic (normal approximation)
- Statistic
- 623.0000
- p-value
- 1.8e-09
- Interpretation
- significant Significant at alpha=0.05 (p=1.8e-09).
- Value Column
- value
- Group Column
- group
- Groups
- high (n=25) low (n=25)
- Effect size
- rank biserial r = -0.9936
Assumptions
- Shapiro-Wilk, group high: W=0.9855, p=0.9688 — normal
- Shapiro-Wilk, group low: W=0.9784, p=0.8518 — normal
- Levene's test (equal variances): p=0.6414
Group descriptives
| Group | n | Mean | SD | Median | Min | Max |
|---|---|---|---|---|---|---|
| high | 25 | 13.6068 | 0.8771 | 13.4861 | 11.9326 | 15.6286 |
| low | 25 | 10.4711 | 0.9953 | 10.4470 | 8.6869 | 12.2762 |
Interactive group boxplot
Figures
Distribution by group (violin) — rank biserial r = -0.994
Download PNG
Group means (95% CI)
Download PNG
Pathway Analysis (same dataset) Help
Method & Provenance
- Method
- Mann-Whitney U test
- Method key
mann_whitney(result type:statistical_test, result #187)- Engine
- Python · scipy v1.17.1
- Dataset(s)
- #706 gallery — example_posthoc_two_groups.csv
- Status
- completed
- Permanent link
- https://cat-g-omxpert.wishartlab.com/results/by-token/1be5947e8391456e8df328daaf731d47 Bookmark or share this URL — it does not depend on your session.
- Created
- 2026-09-21 02:16:42.978151
Parameters used
| Parameter | Value |
|---|---|
test_type
| mann_whitney |
value_col
| value |
group_col
| group |
Execution trace
Reconstructed from the parameters stored with this result — represents the Python/R calls the analysis service made.
from scipy import statsstat, p = stats.mannwhitneyu(group_a, group_b, alternative='two-sided')