This Six Sigma Black Belt cheat sheet compresses ASQ's nine-area CSSBB Body of Knowledge into a fast recall reference for the formulas and tools the exam leans on hardest. It's a premium cheat sheet built by Capital Prep — the one premium prep we trust — and it's yours free. Round it out with the rest of your free CSSBB toolkit: the practice test, study guide, and flashcards.
Six Sigma Black Belt exam at a glance
- Questions: 165 on computer (150 scored + 15 unscored); 150 on paper
- Time: 4 hours 18 minutes (258 minutes) of exam time
- Format: Multiple-choice, one part, open-book
- Passing score: 550 of 750 scaled (about 73%), reported pass/fail
- Certifying body: American Society for Quality (ASQ)
- Eligibility: 3 years' experience in the BoK plus one project affidavit (or two projects)
- Recertification: Every 3 years via 18 recertification units (RUs)
What’s on the Six Sigma Black Belt cheat sheet
- Enterprise Deployment & Measures (≈24 Qs) — Six Sigma roles (Champion, MBB, Black Belt), project selection, and cost-of-quality categories.
- Team Management (15 Qs) — Tuckman's stages, RACI, conflict modes, and the diverge/converge decision tools.
- Define (20 Qs) — Voice of the customer, CTQ trees, the Kano model, SIPOC, and the project charter.
- Measure (25 Qs — heaviest) — Data types, Gauge R&R thresholds, and capability metrics (Cp, Cpk, Pp, Ppk, DPMO, RTY).
- Analyze (22 Qs) — Root-cause tools, correlation vs. regression (R²), and the full hypothesis-test decision guide.
- Improve (21 Qs) — Design of experiments (full and fractional factorial), main effects and interactions, and lean tools.
- Control (17 Qs) — Control-chart selection, common- vs. special-cause variation, and control plans.
- Design for Six Sigma (6 Qs) — DMADV, QFD (house of quality), robust design, and TRIZ.
How to use it in your final week
- Lock in the capability formulas first — Cp = (USL − LSL) ÷ (6σ) and Cpk = min[(USL − x̄) ÷ (3σ), (x̄ − LSL) ÷ (3σ)] — since Cp ≥ Cpk whenever the process is off-center.
- Rehearse the hypothesis-test decision path from the sheet: one mean vs. a target = 1-sample t, two groups = 2-sample t, three-plus means = ANOVA, variances = F, counts = chi-square.
- Drill the DMAIC weighting so you spend reps where the points are — Measure, Analyze, and Improve are the heaviest of the 150 scored questions.
- Because the CSSBB is open-book, tab the sheet into your reference binder and practice looking up each formula under a timer so nothing costs you minutes on exam day.
The cheat sheet is your review layer — your Six Sigma Black Belt practice test drives the exam-readiness ring at the top of this page. Download it, review, then take a full practice exam (or drill with the study guide and flashcards) to see where you stand.
Six Sigma Black Belt cheat sheet FAQ
Yes — the Six Sigma Black Belt cheat sheet downloads as a PDF at no cost and with no sign-up. It sits alongside Career Employer's free CSSBB practice test, study guide, and flashcards, so your whole prep stack stays free.
It condenses the highest-yield material from ASQ's nine-area Body of Knowledge: the DMAIC roadmap, capability formulas (Cp, Cpk, Pp, Ppk), DPMO and sigma level, the hypothesis-test decision guide, control-chart selection, and FMEA's RPN — the reference facts examiners lean on most.
The ASQ CSSBB is open-book, so you may bring approved bound references and notes. Many candidates use a condensed sheet like this as the front tab of their reference binder to find formulas fast — but confirm ASQ's current reference rules before test day.
No — it is a review and recall layer, not a substitute for working problems. The CSSBB is statistics-heavy and asks you to select and apply the right test, so pair the sheet with the practice test to build genuine fluency before the exam.
Click the download button or the preview card at the top of this page to open the PDF instantly. Bookmark the page so you can pull the sheet back up during your final review week.
References
- 1.American Society for Quality. “Certified Six Sigma Black Belt (CSSBB).” asq.org, 2026. ↑
- 2.American Society for Quality. “CSSBB Body of Knowledge.” asq.org. ↑
- 3.American Society for Quality. “The DMAIC Process.” asq.org. ↑
- 4.American Society for Quality. “Process Capability.” asq.org. ↑
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