Every process has some form of waste. A Lean certified professional has the ability to identify this waster and eliminate it using Lean tools and techniques.
Six Sigma White Belts have basic know-how of Six Sigma. They are domain experts and have knowledge of 7 Basic Quality tools.
The Certified Six Sigma Black Belt is a professional who can explain Six Sigma philosophies and principles, including supporting systems and tools. A Black Belt should demonstrate team leadership, understand team dynamics, and assign team member roles and responsibilities.
As a Minitab Specialist, you become an expert at data analysis; you understand data, are able to slide and dice the data and solve quality problems by inferring from the analysis. You enable leaders to take key organizational decisions basis the inferences provided by your analysis.