I'm a Six Sigma Green Belt certified person keen to do a project on process improvement. As a learner, I want to understand that with so many tools and statistical calculations under the DMAIC methodology, How do I figure out which one do I appl

I'm a Six Sigma Green Belt certified person keen to do a project on process improvement. As a learner, I want to understand that with so many tools and statistical calculations under the DMAIC methodology, How do I figure out which one do I apply for my project? Does the application of these tools depend on the type of the project? How do I determine that? Please somebody help me.