# Six Sigma Green Belt Prep — ASQ CSSGB Exam Study and Tools > ASQ Six Sigma Green Belt and Black Belt exam preparation and tools. (iPhone/iPad app by Deeun Inc..) - Source: https://appshunter.io/ios/app/six-sigma-green-belt-prep/id6763969601 (this page in markdown: same URL + `.md`) - Developer: [Deeun Inc.](https://appshunter.io/developer/1691824695) - Category: Education, Business - Price: Free with in-app purchases - Rating: 4.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 6 MB - Languages: American English - Released: 2026-05-14 - Data updated: 2026-08-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/six-sigma-green-belt-prep/id6763969601/reviews.md ## What is Six Sigma Green Belt Prep? SIX SIGMA PREP: PASS YOUR ASQ GREEN BELT OR BLACK BELT EXAM The ASQ CSSGB exam requires 550 of 750 points. The CSSBB is one of the most rigorous professional certifications in quality management. Candidates who fail are most often weak on statistical tools, selecting the correct control chart, and process capability calculations. DMAIC PHASE REFERENCE DEFINE: Project Charter (problem statement, goal, scope, team, timeline, financial benefit), SIPOC, VOC, CTQ tree. Gate deliverable: signed project charter. MEASURE: Process map, data collection plan, Gage R&R, process capability baseline (Cp, Cpk, Pp, Ppk), baseline sigma level. Gate deliverable: validated measurement system. ANALYZE: Fishbone diagram, 5 Whys, Pareto chart, hypothesis testing (t-test, ANOVA, chi-square), regression, FMEA (severity, occurrence, detection, RPN). Gate deliverable: verified root causes. IMPROVE: Brainstorming, poka-yoke, design of experiments (DOE), pilot testing, implementation plan. Gate deliverable: validated solution with pilot data. CONTROL: Control charts, control plan, standard operating procedures, response plan, project handoff to process owner. Gate deliverable: sustainable control system. CONTROL CHART SELECTOR Variables data: Xbar-R chart for subgroup size 2 to 10. Xbar-S chart for subgroup size greater than 10. I-MR chart for subgroup size of 1. Attributes data: p chart for proportion defective, varying subgroup size. np chart for number defective, constant subgroup size. c chart for defects per unit, constant area of opportunity. u chart for defects per unit, varying area of opportunity. Special cause signals: single point beyond 3 sigma, 8 consecutive points same side of centerline, 6 consecutive points trending in one direction, 2 of 3 consecutive points beyond 2 sigma. PROCESS CAPABILITY CALCULATOR Enter process mean, standard deviation, USL, and LSL. Calculate Cp (equals USL minus LSL divided by 6 sigma), Cpk (minimum of USL minus mean and mean minus LSL, each divided by 3 sigma), Pp (using overall standard deviation), Ppk. Sigma level from Cpk and DPMO conversion included. 1,000+ PRACTICE QUESTIONS OVERVIEW: SIX SIGMA AND ORGANIZATION (10%): History and principles, organizational goals, quality costs, team formation, project selection. DEFINE PHASE (15%): Project charter, SIPOC, VOC, CTQ flowdown, QFD, project risk assessment. MEASURE PHASE (20%): Data types (continuous vs discrete), sampling, Gage R&R, process capability (Cp, Cpk, Pp, Ppk, sigma level, DPMO), SPC basics. ANALYZE PHASE (25%): Root cause tools, hypothesis testing (Type I and II errors, p-value), t-tests, ANOVA, chi-square, correlation and regression, FMEA. IMPROVE PHASE (15%): Poka-yoke types (control, warning, shutdown), design of experiments, pilot planning. CONTROL PHASE (15%): Control chart selection and interpretation, control plan, SPC signals, standard work documentation, project closure. Every question includes a detailed explanation referencing the ASQ CSSGB Body of Knowledge. FREE: 5 questions per day, DMAIC reference card, basic control chart selector. No account required. MONTHLY ($9.99/month): Full 1,000+ questions, complete DMAIC Phase Reference, Control Chart Selector, Process Capability Calculator, reference library, exam simulator, 3-day free trial. ANNUAL ($24.99/year): Everything in Monthly. Save over 55 percent. Best value. LIFETIME ($49.99): One payment. Permanent access. PASS PROMISE: Complete all questions with 80% or higher average, hold active subscription for 3 months, still do not pass. We extend your access by 4 months at no charge. voltexam.com/pass-promise ASQ, CSSGB, and CSSBB are registered trademarks of the American Society for Quality. Not affiliated with ASQ or IASSC. Privacy Policy: https://www.voltexam.com/privacy Terms of Service: https://www.voltexam.com/terms ## Key features - ASQ CSSGB/CSSBB exam preparation - Statistical tools and concepts - Control chart selector - Process capability calculator - 1,000+ practice questions - Detailed question explanations ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly Access | $9.99 | per month | | Annual Access | $24.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | SixSigma - Lifetime Pro | $49.99 | one-time | ## Frequently asked questions about Six Sigma Green Belt Prep ### What is Six Sigma Green Belt Prep? Six Sigma Green Belt Prep is an educational application designed to help users prepare for the ASQ CSSGB and CSSBB certification exams. It covers key concepts like DMAIC phases, statistical tools, and control charts, offering over 1,000 practice questions with detailed explanations. ### What specific Six Sigma topics does Six Sigma Green Belt Prep cover? The app covers all phases of the DMAIC methodology: Define, Measure, Analyze, Improve, and Control. It also includes sections on Six Sigma and Organization, data types, hypothesis testing, FMEA, and design of experiments. ### Does Six Sigma Green Belt Prep offer tools to help with calculations? Yes, the app includes a Control Chart Selector to help identify the correct chart for different data types and subgroup sizes. It also features a Process Capability Calculator for Cp, Cpk, Pp, Ppk, and sigma level calculations. ### How does Six Sigma Green Belt Prep help users learn? It provides over 1,000 practice questions, each with a detailed explanation that references the ASQ CSSGB Body of Knowledge. This allows users to understand the reasoning behind correct answers and reinforce their learning. ### What are the subscription options for Six Sigma Green Belt Prep? The app offers monthly access for $9.99 per month, which includes a 3-day free trial. Annual access is available for $24.99 per year. ### Is Six Sigma Green Belt Prep available on multiple devices? Based on the provided data, Six Sigma Green Belt Prep is currently supported on iPhones. Information regarding Android or other device compatibility is not specified. ### How often is Six Sigma Green Belt Prep updated? The app was last updated on June 30, 2026, with version 2.0. This indicates a recent update, suggesting ongoing development and maintenance. ### What is the user rating for Six Sigma Green Belt Prep? Six Sigma Green Belt Prep has a rating of 4.0 stars based on 1 rating. This provides a preliminary indication of user satisfaction. ## Version history (last 2 releases) ### 2.0 — 2026-06-30 Version 2.0 is our biggest update yet — built to get you certified faster: • NEW STUDY PATH + TIMED MOCK EXAM — a full Learn → Flashcards → Practice → Test flow, with a full-length mock exam that mirrors the real CSSGB test (pass/fail score, per-domain breakdown, review of every missed question). • 1,000 PRACTICE QUESTIONS across all 6 exam domains: Overview, Define, Measure, Analyze, Improve, and Control. • 18 STUDY GUIDES + 270 FLASHCARDS with spaced repetition to lock in DMAIC, Lean, and statistics. • SHARPER STAT TOOLS — corrected DPMO, yield, control-chart limits, and Cp/Cpk for accurate process-capability and Sigma-level results. • PROGRESS BY DOMAIN so you can see exactly which area to study next. • Accessibility and polish throughout. Study smarter and walk into your ASQ/IASSC Green Belt exam with confidence. Good luck! ### 1.0 — 2026-05-14 No release notes. ## More apps by Deeun Inc. - [Kidonomic: Kids Money Coach](https://appshunter.io/ios/app/kidonomic-kids-money-coach/id6476450084) - [AI Stock Vision](https://appshunter.io/ios/app/ai-stock-vision/id6738970800) - [Use-It-Up:Save Food,Save Money](https://appshunter.io/ios/app/use-it-upsave-foodsave-money/id6749287569) - [StyleFlip AI](https://appshunter.io/ios/app/styleflip-ai/id6753980457) - [Steps++ : Track & Challenge](https://appshunter.io/ios/app/steps-plus-plus-track-and-challenge/id6754710872) - [Electrician Exam Prep:NEC 2026](https://appshunter.io/ios/app/electrician-exam-prepnec-2026/id6757658532) All apps by Deeun Inc.: https://appshunter.io/developer/1691824695 ## Related topics [zigma green](https://appshunter.io/ios/topics/zigma-green) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*