CSSYB study materials
CSSYB study resources

CSSYB study plan

CSSYB · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Six Sigma Fundamentals (Six Sigma and the Organization)

  • Define Six Sigma and contrast it with Lean, TQM, and traditional inspection-based quality control

  • Sequence the five DMAIC phases and state the purpose and key deliverable of each

  • Distinguish the responsibilities of sponsor, champion, process owner, MBB, BB, GB, and Yellow Belt

  • Calculate sigma level, DPMO, and first-pass yield from defect and opportunity counts

  • Name the eight lean wastes and tag one real example of each from your own workplace

Your checkpoint

A single-page reference sheet covering DMAIC outputs, belt roles, and the 8 wastes, plus 10 self-worked DPMO/sigma-level problems scored at 9/10 or better against an answer key.

Week 2

Six Sigma Fundamentals (Six Sigma and the Organization) & Define Phase

  • Classify 10 real cost items into cost-of-poor-quality categories (prevention, appraisal, internal failure, external failure)

  • Rewrite a vague complaint as a measurable problem statement with baseline, location, timing, and magnitude

  • Draft SMART goal statements and a business case with a defensible savings estimate

  • Construct a SIPOC for a process you own with at least 5 inputs, 5 outputs, and 3-5 customer requirements

  • Identify project stakeholders and assign each a communication method and cadence

Your checkpoint

A completed project charter (problem, goal, business case, scope, team, milestones) plus a SIPOC diagram for one real process, scored against a 10-point completeness checklist.

Week 3

Define Phase & Measure Phase

  • Differentiate voice of the customer, CTQ, and the Kano model categories, and sort 10 requirements into them

  • Convert three customer needs into CTQs with operational definitions, units, and specification limits

  • Build a Pareto chart and write the vital-few conclusion that identifies the top contributors

  • Assess a project against Define-phase tollgate criteria and list any gaps before proceeding

  • Outline a data collection plan naming what to measure, the operational definition, and the data owner

Your checkpoint

A CTQ tree plus a Pareto chart built from real or supplied data, accompanied by a one-paragraph vital-few justification.

Week 4

Measure Phase

  • Classify variables as continuous or discrete and as nominal, ordinal, interval, or ratio, then match each to a valid chart

  • Write operational definitions and a data collection plan with a justified sampling method and sample size

  • Interpret a Gage R&R result for continuous data and an attribute agreement analysis for discrete data

  • Compute and explain mean, median, mode, range, and standard deviation, and read a histogram and box plot

  • Calculate Cp, Cpk, Pp, and Ppk, and translate capability into sigma level and expected DPMO

Your checkpoint

A Measure-phase workbook containing data collection plan, MSA interpretation, and a capability calculation with written conclusion, scored at 80% or higher against an answer key.

Week 5

Analyze Phase

  • Generate candidate causes in a fishbone diagram using all six M categories

  • Drive the most likely causes to a verifiable root cause using the 5 Whys

  • Weight and rank causes in a cause-and-effect matrix scored against customer importance

  • Distinguish correlation from causation when interpreting scatter plots and regression output

  • Select the appropriate test (1-sample t, 2-sample t, paired t, ANOVA, chi-square) for five written scenarios and justify alpha, beta, and p-value interpretation

Your checkpoint

A root cause analysis package for one problem: fishbone, documented 5-Whys chain, C&E matrix, and a paragraph naming the chosen statistical test and why.

Week 6

Analyze Phase & Improve Phase

  • Apply stratification and multi-vari thinking to separate within-unit from between-unit variation

  • Generate solution options through brainstorming and benchmarking, then screen them on an impact/effort matrix

  • Apply lean improvement tools (5S, kaizen, poka-yoke, standard work, value stream mapping) to one workflow

  • Design a pilot stating success metric, sample, duration, and go/no-go decision criteria

  • Explain at a conceptual level how a full-factorial DOE isolates main effects and interactions

Your checkpoint

An improvement plan naming the selected solution, its impact/effort rank, the pilot design, and a projected benefit with the assumption behind it.

Week 7

Improve Phase & Control Phase

  • Build a control plan specifying measure, method, frequency, owner, and reaction for each key X

  • Select the correct control chart type (I-MR, Xbar-R, p, np, c, u) for six data scenarios

  • Interpret control charts to separate common from special cause and state the standard out-of-control rules

  • Write an out-of-control action plan with trigger, immediate response, escalation, and verification steps

  • Error-proof the improved process and document standard work for the new method

Your checkpoint

A control plan plus one plotted control chart with at least three signals correctly identified and matched to the corresponding action-plan response.

Week 8

Control Phase & Six Sigma Fundamentals (Six Sigma and the Organization)

  • Verify project closure requirements: results validation, documentation, lessons learned, process handoff, and financial sign-off

  • Audit a control plan against a 5W1H completeness test and correct every missing element

  • Complete two timed full-length practice exams and log every missed item by domain

  • Re-study the two weakest domains until re-quiz performance reaches 80% or higher

  • Recite from memory the core tools and deliverables associated with each DMAIC phase

Your checkpoint

A domain scorecard built from two timed practice exams, plus a one-page remediation log showing every domain at 80% or higher.

Milestones

Week 2: Explain DMAIC, belt roles, and the 8 wastes without notes, and produce a charter plus SIPOC that passes the 10-point checklist with no missing scope or goal elements.

Week 4: Score 80% or higher on a 25-question Measure-phase quiz and correctly compute Cp/Cpk from raw data with the sigma level stated in the conclusion.

Week 6: Demonstrate a complete fishbone-to-root-cause chain, name the correct hypothesis test for a given dataset, and present a pilot design with explicit go/no-go criteria.

Week 8: Average 80% or higher across two full-length timed practice exams with no single domain below 70%, and every control-chart and DPMO item answered correctly on review.