Six Sigma: quality processing through statistical analysis

Six Sigma is both a philosophy and a methodology that improves quality by analyzing data with statistics to find the root cause of quality problems and to implement controls. Although Six Sigma is typically first implemented to improve manufacturing, the method can also be used in other business processes, such as product design and supply chain management. Jennifer Markarian reports on how Six Sigma can benefit companies - big and small - and how it is being implemented by a number of companies in the plastics industry.