The purpose of using control chart is to determine if the process is performing within specifications evaluate process performance over time determine how to recreate the process detect the causes of nonconformities Using the DMAIC approach to lean six sigma improvement, at what step would the root causes of defects be identified? Measure Control Improve Analyze Poka-yoke is best defined as improving machine efficiency reducing invento hs to virtually zero capturing the voice of the customer preventing defects caused by mistake Which of the following statement of DPPM is true? DPPM is Defective Parts Per Million DPPM stands for Defect Percent per Million DPPM stands for Defective Percent Parts Million DPPM stands for Defect Percent Parts Mitlion None of the above