Question

Six sigma based quality improvement concepts are not applicable to .

• A. Banking
• B. Manufacturing
• C. Health
• D. Infrastructure

Hint:

Six Sigma needs repeatable, measurable processes to work well.

Answer 1

The Correct Option is D

Step 1: Understanding the Question:
We must identify the sector where Six Sigma quality improvement is not typically used.

Step 2: Key Approach:
Six Sigma works by measuring defects in a process with statistical tools and then systematically reducing that variation, so it fits best in sectors with high volume, repeatable operations.

Step 3: Detailed Explanation:
Manufacturing is the birthplace of Six Sigma and still its most classic use case, since factory production lines generate large amounts of measurable process data.
Banking uses Six Sigma to streamline processes like account opening, cheque clearing and loan approvals, which repeat thousands of times and can be measured for defects.
Healthcare providers use Six Sigma to cut down on medication errors and improve patient care processes.
Infrastructure projects, such as building roads, bridges or power plants, are largely one off or project based undertakings governed by engineering design, government approvals and site conditions, which do not lend themselves to the repeatable process measurement that Six Sigma needs.

Step 4: Final Answer:
Because Six Sigma needs repeatable, measurable processes and infrastructure work does not fit that mould as well as banking, manufacturing or health services do, the correct answer is Infrastructure, option (d).