Page 233 - DMGT501_OPERATIONS_MANAGEMENT

Unit 8: Acceptance Sampling

8.7 Self Assessment Notes

Fill in the blanks:
1. ........................ is used to determine whether to accept or reject a lot of material that has
already been produced.

2. An ........................ has much the effect of a lone sniper, while the sampling plan scheme can
provide a fusillade in the battle for quality improvement.
3. The difference between acceptance sampling approaches and ........................ is the emphasis
on process acceptability rather than on product disposition decisions.
4. A ........................ is a sampling scheme and a set of rules for making decisions
5. ........................ is the ultimate extension of multiple sampling where items are selected from
a lot one at a time and after inspection of each item a decision is made to accept or reject the
lot or select another unit.
State whether the following statements are true or false:

6. Skip lot sampling means that only a fraction of the submitted lots are inspected.
7. The AQL is a percent defective that is the base line requirement for the quality of the
producer’s product
8. The LASP is a designated high defect level that would be unacceptable to the consumer

9. The OC curve is the primary tool for displaying and investigating the properties of a
LASP.
10. The symbol is commonly used for the Type I error and typical values for range from 0.2
to 0.01.

8.8 Review Questions

1. What do you understand by the concept of acceptance sampling?
2. Write a note on the multiple sampling plan.
3. What are the Type I and Type II errors?

Answers: Self Assessment

1. Acceptance sampling 2. Individual sampling plan
3. Acceptance control charts 4. Lot Acceptance Sampling Plan (LASP)
5. Sequential sampling plans 6. True
7. True 8. False
9. True 10. True

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