(5) Discuss the following questions related to the Casper Merrill Six Sigma in Practice vignette: a. What role did analysis of the variation in the ice cream freezers and the extrusion process. play in their application of lean Six Sigma methods to their operations? b. How did Casper’s analysis of their use of nitrogen in their conveyor belt system to freeze the ice cream result in changes? What savings were they able to realize, based on their projects?