Which of the following statements is wrong? Group of answer choices The primary design objective with lean layouts is to reduce wasted movements of workers, customers, and/or work-in-process. Lean thinking and Six Sigma quality are both concerned with achieving low cost and high quality throughout the supply chain A cause-and-effect diagram is a useful tool for presenting data in an organized fashion, indicating process problems from most to least severe. Statistical process control (SPC) allows firms to compare process performance to desired levels or required standards