101W7B Sampling

What is random sampling in quality control?

• a) Selecting items based on specified criteria
• b) Examining every item in the population
• c) Selecting a random subset of items for inspection
• d) Choosing items based on their criticality

What is the primary advantage of random sampling?

• a) It guarantees the absence of defects in the sample.
• b) It is cost-effective for small populations.
• c) It provides a statistically unbiased representation of the population.
• d) It focuses on critical components.

What is the potential disadvantage of random sampling?

• a) It is time-consuming.
• b) It is costly for large populations.
• c) There is no guarantee of inspecting all items meeting specific criteria.
• d) It guarantees the identification of all defects.

When is specified sampling typically used in quality control?

• a) When examining every item in the population is necessary
• b) When random selection is preferred
• c) When certain items are critical or require closer scrutiny
• d) When dealing with small populations

What is the advantage of specified sampling?

• a) It guarantees a statistically unbiased representation of the population.
• b) It focuses on critical components.
• c) It is cost-effective for large populations.
• d) It ensures the absence of defects.

Why might specified sampling be insufficient for comprehensive quality control?

• a) It is too time-consuming.
• b) It is costly for small populations.
• c) It may not provide a complete view of the overall population.
• d) It is ineffective in identifying defects.

What does 100% sampling involve?

• a) Examining a random subset of items
• b) Examining every single item in the population
• c) Focusing on critical components only
• d) Selecting items based on specified criteria

What is the primary advantage of 100% sampling?

• a) It is cost-effective.
• b) It is resource-efficient.
• c) It ensures that no defective items are missed.
• d) It is suitable for large populations.

In which industries is 100% sampling often used due to its reliability?

• a) Manufacturing
• b) Healthcare and aerospace
• c) Retail
• d) Information technology

What factors influence the selection of a sampling method?

• a) Personal preferences
• b) Organizational goals, budget, and item characteristics
• c) Industry trends
• d) Regulatory requirements