CSSGB case studies
CSSGB · Put your knowledge to work in context.
The ASQ Certified Six Sigma Green Belt (CSSGB) is a professional credential for practitioners who contribute to quality improvement projects, typically working alongside or under the guidance of a Six Sigma Black Belt. ASQ positions it for professionals with at least three years of full-time, paid work experience in areas covered by the CSSGB Body of Knowledge; educational waivers are not granted for this exam. The CSSGB case studies are 5 cases and about 4,194 words.
1Which Work Becomes a Six Sigma Project - and What Counts as Savings
Arbor Metal Works ( 40M revenue) reports 6.8% weld porosity on Line 2, 82% on-time delivery, and roughly 2.1M per year in scrap and rework. The VP of Operations announces a deployment: 60 Green Belts trained within six months, one project each.
802 words, about 4 min2A Problem Statement That Names Its Own Solution
Northgate Community Hospital's emergency department complains that CT results arrive too late. The Define-phase team has drafted this problem statement: "CT turnaround time is too long and radiology is understaffed, which causes poor patient satisfaction in the ED." The charter scope reads: "Order entry to final report sign-off; all modalities; all shifts; inpatients and outpatients." No baseline exists yet.
824 words, about 4 min3A Gage R&R Run on One Hour of Production
Vega Machine measures a shaft diameter to a tolerance of 25.00 ± 0.10 mm using a digital micrometer with 0.001 mm resolution. A crossed Gage R&R is run with 2 operators, 10 parts, 3 trials.
649 words, about 3 min4Two Suppliers, One p-Value
Pinnacle Plastics sources resin from two suppliers. A key property, tensile strength, must be at least 38 MPa.
939 words, about 5 min5Eight Points Above the Line, and a Project Due to Close
After a DMAIC project on a 500 mL fill line, the team sets up an X̄–R chart with n = 5 and 25 subgroups. Specification is 500 ± 5 mL.
980 words, about 5 min