How does achieving a Six Sigma objective improve quality

How does achieving a Six Sigma objective improve quality

Please answer the following two questions. They are separate from one another. Make sure when you answer the two questions list the references after each. 1. How does achieving a Six Sigma objective improve quality? Discuss how this objective can help demonstrate the need for quality over speed. 2. Discuss some communication challenges that can arise when dealing with stakeholder expectations of a project. What is the purpose of a project communications plan? 100 words each.