An organization develops a new strategic plan and seeks ways to improve process performance by reducing variation to only 3.4 defects per million process outputs. Which tool can the organization use to meet this goal?

Six Sigma specifically targets process improvement through the systematic reduction of defects and variability. Its methodology involves defining, measuring, analyzing, improving, and controlling processes (DMAIC), making it highly effective for organizations aiming for a performance standard of only 3.4 defects per million outputs.

While statistical process control (SPC) is useful for monitoring and controlling process variations using statistical methods, it does not inherently target a specific defect rate like Six Sigma does. SPC focuses more on maintaining processes within acceptable limits rather than achieving a stringent goal of 3.4 defects per million outputs.

Just-in-time (JIT) is primarily a production strategy aimed at reducing inventory and increasing efficiency by producing only what is needed when it is needed. Although it can contribute to overall process improvement, it does not directly address the reduction of defects or variation in output quality.