Final answer:
Six Sigma is a methodology for process improvement that can be applied to various industries. It aims to reduce defects and variation in processes by using statistical tools and techniques.
Step-by-step explanation:
The statement that is not true about Six Sigma is 3) It is only applicable to manufacturing industries. Six Sigma is a methodology for process improvement that can be applied to various industries, including manufacturing, services, healthcare, and finance. It aims to reduce defects and variation in processes, using statistical tools and techniques.