Which of the following are three levels of training in the six sigma quality system?

A. Blue Belts

B. Yellow Belts

C. Black Belts

D. Red Belts

E. Green Belts

Choose the most appropriate answer from the options given below:

The correct answer is B, C and E only.

Key Points 

B. Yellow Belts: Yellow Belts receive basic training in Six Sigma methodologies and tools. They typically work as team members or support staff on Six Sigma projects.

C. Black Belts: Black Belts receive advanced training in Six Sigma and lead improvement projects within an organization. They are responsible for implementing Six Sigma methodologies, analyzing data, and driving process improvements.

E. Green Belts: Green Belts receive training in Six Sigma methodologies and tools and work as project team members, supporting Black Belts in process improvement initiatives.

The options A. Blue Belts and D. Red Belts are not typically recognized as official levels of training in the Six Sigma quality system.
The most appropriate answer is:

B. Yellow Belts
C. Black Belts
E. Green Belts