Which approach is likely to have the main savings derived from reducing the cost of poor quality?

Focusing on the Six Sigma approach clarifies why this choice is the most appropriate in terms of reducing the cost of poor quality. Six Sigma primarily targets the elimination of defects and variation in processes, which directly contributes to improving quality and efficiency. By employing statistical tools and methodologies, Six Sigma enables organizations to identify and analyze the causes of poor quality, implement process improvements, and ultimately minimize the costs associated with defects, rework, and customer dissatisfaction. This results in significant cost savings stemming from enhanced quality performance.

While Lean focuses on waste reduction and optimizing workflow, its primary aim is not solely centered around quality improvement. It complements quality improvements but does not specifically tackle the statistical aspects of defects and process variations that Six Sigma emphasizes. Therefore, when assessing which approach implies the main savings from reducing the cost of poor quality, Six Sigma stands out due to its concentrated efforts in enhancing quality through rigorous data analysis and process control.