# A paired-test method to verify service speed improvement in the Six Sigma approach: a restaurant's case study

> Research article (Total Quality Management & Business Excellence, 2015) · cited 14× · AI/ML

**Wikidata**: [openalex:W2289590701](https://www.wikidata.org/wiki/openalex:W2289590701)  
**Source**: https://4ort.xyz/entity/a-paired-test-method-to-verify-service-speed-improvement-in-the-six-sigma-approach-a-restaurant-s-case-study