statistical-analyst SKILL.md skillA
statistical-analyst from borghei/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add borghei/claude-skills/statistical-analyst@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- borghei/claude-skills
- Path
data-analytics/statistical-analyst/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0.0, committed Oct 23, 2026
- First version recorded
- Jul 21, 2026
- Size
- 15,934 bytes
- Repository stars
- 1,075
- License
- a license file GitHub does not identify
Applied statistics for business and product questions — test selection, assumption checks, power planning, effect sizes with intervals, multiplicity correction. Use when interpreting an experiment, sizing a study, or vetting a claim.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Statistical Analyst Most bad statistics in business are not arithmetic errors. They are the wrong test on the right data, a null result reported as "no difference," a p-value mistaken for an effect size, or twenty comparisons run and the one that cleared 0.05 written up. This skill covers the applied path: pick the test the data shape actually calls for, check the assumptions that carry weight, size the study before running it, report effects with intervals rather than bare p-values, and say what you found to people who do not want a statistics lecture. Everything here runs on the Python standard library — the t, chi-square, and normal distributions are implemented directly, so there is no scipy dependency between a question and an answer. Because those implementations are hand-rolled, `stats_core.py --selftest` verifies all of them against published reference values; run it once before trusting any result. ## When to use this skill - An A/B test finished and someone needs to know whether to ship - A study is being designed and nobody has computed how many observations it needs - A stakeholder is quoting a p-value as if it were an effect size …
Read the whole file at its exact version.
How to install
mdr add borghei/claude-skills/statistical-analyst@sha256:0ace7b37a99aad48The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jwbytq3k2tunsb64)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jul 21, 2026 and Oct 23, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-23 | 3a7a18a | 15,934 B | A | view · diff |
| v1.0.0 | 2026-10-23 | 2b5180a | 13,981 B | A | view · diff |
| v1.0.0 | 2026-07-21 | 0b29afb | 13,884 B | A | view · diff |
| v1.0.0 | 2026-07-21 | 9cb3eb9 | 13,708 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15934 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
borghei/claude-skills · 1,075 stars · license a license file GitHub does not identify · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jwbytq3k2tunsb64 GET https://markdownregistry.com/api/v1/resolve?ref=borghei/claude-skills/statistical-analyst GET https://markdownregistry.com/api/v1/blob/0ace7b37a99aad482855711947cdb06eec6489812f2568888b5449d3a3b7eda0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.