How do you know that performance data is accurate?  Are you sure there aren’t, in fact, a series of processes hiding behind your process, distorting your measurement results?Mood's Median Test and ANOVA are statistical tools that will give you confidence in your measures, helping you to focus your improvement work.“I can’t imagine working on an improvement project without them”, PMI Director Consultant Sean Buckland tells us, as he demonstrates how they help us to understand complex systems, and shares his 3 top tips for helping you to apply these clever tools to best effect.Interested in this topic?  Here are more PMI resources that you may find helpful:On-Demand Webinar: Black Belt Tools With a KickLean Six Sigma Certification:  Black BeltPERFORMANCE IMPROVEMENT IN AN AI-DRIVEN WORLD.The Goals to Results Conference is back! 17th March 2026. Get your ticket here. More from PMI: Dive into our Knowledge Hub for more tools, videos, and infographics Join us for a PMI LIVE Webinar Follow us on LinkedIn Take your improvement career to the next level with PMI's Lean Six Sigma Certifications - now available in two new and accessible formats, built around you. Explore On Demand >> Explore Distance Learning >>

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