Deck 19: Operational Decision-Making Tools: Acceptance Sampling

Question 1

Six Sigma companies report defective parts per million (PPM)versus the more traditional defective parts per hundred.

Answer 1

True

Question 2

The probability of rejecting a lot that has an acceptable quality level is referred to as the

A)producer's risk.
B)consumer's risk.
C)lot tolerance percent defective.
D)acceptable quality level.

Answer 2

producer's risk.

Question 3

The average outgoing quality (AOQ)is a measure of the expected number of defective items that will pass on to the customer with the sampling plan selected.

Answer 3

True

Question 4

The consumer's risk is the probability of accepting a lot in which the fraction of defective items exceeds the lot tolerance percent defective (LTPD).

Question 5

A lot is rejected if the number of defective units found in a random sample exceeds a predetermined acceptable number of defective units.

Question 6

Acceptance sampling is consistent with TQM's philosophy of zero defects.

Question 7

The probability of accepting a lot that has a higher percentage of defective items than the lot tolerance percent defective is referred to as the

A)producer's risk.
B)sampling plan.
C)consumer's risk.
D)average outgoing quality.

Question 8

The consumer's risk is the probability of rejecting a lot that meets the acceptable quality level (AQL).

Question 9

Acceptance sampling involves the inspection of a non-random sample of units selected from a lot.

Question 10

Six Sigma companies report

A)defective parts per million.
B)defective parts per thousand.
C)defective parts per hundred.
D)no defective parts.

Question 11

The simplest form of a sampling plan is a single-sample attribute plan.

Question 12

The consumer's willingness to accept lots with a small proportion of defective items is known as the acceptable

A)sampling plan.
B)quality level.
C)consumer's risk.
D)producer's risk.

Question 13

Acceptance sampling is based on the premise that a lot contains some acceptable number of defective items.

Question 14

Acceptance sampling is still used today for all the following reasons except

A)government regulations.
B)contractual requirements.
C)industry standards.
D)total quality management principles.

Question 15

A(n)________________ curve is a graph showing the probability of accepting a lot for different quality levels with a specific sampling plan.

A)operating characteristic (OC)
B)average outgoing quality
C)lot tolerance percent defective
D)single-sample attribute

Question 16

A sampling plan provides a set of guidelines for accepting a lot.

Question 17

With a single-sample attribute plan only one of the items randomly sampled from a lot is inspected.

Question 18

.Is acceptance sampling consistent with TQM?

Question 19

An operating characteristics (OC)curve is a graph that measures the probability of accepting a lot with no defective items.

Question 20

With acceptance sampling,a lot is either rejected or accepted depending on the number of defects found in a sample.

Question 21

A multiple-sampling plan uses the smallest sample size of any sampling plan.

Question 22

What is the advantage of a multiple-sampling plan?

Question 23

Choosing among a single-,double- and multiple-sampling plans is a strategic versus an economic decision.

Question 24

The expected number of defective items that will pass on to the customer with a sampling plan is known as the

A)lot tolerance percent defective.
B)acceptable quality level.
C)average outgoing quality.
D)sampling plan.

Question 25

Double-sampling plans are often less costly than single-sampling plans.

Question 26

A multiple-sampling plan uses the smallest sample size of any sampling plan.

Question 27

The _________________ is the maximum number of defective items a customer will accept in a lot.

A)producer's risk
B)consumer's risk
C)average outgoing quality
D)lot tolerance percent defective

Question 28

An operating characteristic (OC)curve is a graph that measures

A)the acceptable proportion of defects in a lot to the consumer.
B)the probability of accepting a lot for different quality levels with a specific sampling plan.
C)the probability of accepting a lot in which the fraction of defectives exceeds the lot tolerance percent defective.
D)the maximum number of defective items a consumer will accept in a lot.