Question 1

The maximum value of the average outgoing quality over all possible values of the proportion defective is called the ________.

Accepted Answer

average ou

Question 2

If the sample size is increased and the acceptance level is unchanged,the OC curve will have a higher consumer's risk.

Accepted Answer

A) True 
 B)False

Question 3

A single-sampling plan by attributes is needed for a purchased component.Given the following information,what is the consumer's risk? Table G.1 is appended to this exam. Sample size = 50
Acceptance number (c)= 3
Acceptance quality level (AQL )= 0.01
Lot tolerance proportion defective (LTPD)= 0.04

Accepted Answer

A) greater than or equal to 0 but less than or equal to 0.25 
B) greater than 0.25 but less than or equal to 0.50 
C) greater than 0.50 but less than or equal to 0.75 
D) greater than 0.75 but less than or equal to 1.00 
A) greater than or equal to 0 but less than or equal to 0.25 
B) greater than 0.25 but less than or equal to 0.50 
C) greater than 0.50 but less than or equal to 0.75 
D) greater than 0.75 but less than or equal to 1.00

Question 4

Which one of the following alternatives will reduce the consumer's risk for a given AQL and LTPD?

Accepted Answer

A) Reduce n and keep c constant. 
B) Increase n and keep c constant. 
C) Reduce n and increase c. 
D) Increase beta. 
A) Reduce n and keep c constant. 
B) Increase n and keep c constant. 
C) Reduce n and increase c. 
D) Increase beta.

Question 5

A quality manager has established a sampling plan that calls for a sample size of 200 units and an acceptance number of 3.The supplier has agreed to a contract that calls for an AQL of 0.01 and an LTPD of .03.What is the producer's risk? Table G.1 is appended to this exam.

Accepted Answer

A) more than 0.14 
B) between 0.14 and 0.12 
C) between 0.12 and 0.10 
D) less than 0.10 
A) more than 0.14 
B) between 0.14 and 0.12 
C) between 0.12 and 0.10 
D) less than 0.10

Question 6

Which of the following is an example of a type II error?

Accepted Answer

A) convicting an innocent defendant 
B) returning your "dead" stereo for warranty repair when its malfunction was caused by it not being plugged in 
C) halting production to adjust a machine when your process was actually in control 
D) eating food that has spoiled 
A) convicting an innocent defendant 
B) returning your "dead" stereo for warranty repair when its malfunction was caused by it not being plugged in 
C) halting production to adjust a machine when your process was actually in control 
D) eating food that has spoiled

Question 7

________ is the risk that a lot with LTPD will be accepted-a type II error.

Accepted Answer

The answer of ________ is the risk that a lot...

Question 8

Why is an operating-characteristic (OC)curve useful?

Accepted Answer

OC curves describe how well a

Question 9

A quality manager has established a sampling plan that calls for a sample size of 75 units and an acceptance number of 2.The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .04.What is the producer's risk? Table G.1 is appended to this exam.

Accepted Answer

A) less than 0.16 
B) between 0.16 and 0.18 
C) between 0.18 and 0.2 
D) greater than 0.2 
A) less than 0.16 
B) between 0.16 and 0.18 
C) between 0.18 and 0.2 
D) greater than 0.2

Question 10

A graph that demonstrates how well a sampling plan distinguishes between shipments that should be accepted and shipments that should be rejected is a(n)________.

Accepted Answer

The answer of A graph that demonstrates how well a...

Question 11

A single-sampling plan has n = 200 and c = 6.A sample is taken and five items are found to be defective.What should be done?

Accepted Answer

A) Another sample should be taken. 
B) The lot should be rejected. 
C) The lot should be accepted. 
D) The five items should be repaired,and then the entire lot should be accepted. 
A) Another sample should be taken. 
B) The lot should be rejected. 
C) The lot should be accepted. 
D) The five items should be repaired,and then the entire lot should be accepted.

Question 12

A company wants to develop an acceptance sampling plan that keeps the producer's risk at 0.03 or less and the customer's risk at 0.10 or less.The acceptable quality level (AQL)is 0.01,and the lot tolerance proportion defective (LTPD)has been set at 0.10.Which one of the following plans gives us the desired protection? Table G.1 is appended to this exam.

Accepted Answer

A) c = 3,n = 190 
B) c = 2,n = 54 
C) c = 1,n = 30 
D) c = 1,n = 20 
A) c = 3,n = 190 
B) c = 2,n = 54 
C) c = 1,n = 30 
D) c = 1,n = 20

Question 13

In general,a sequential sampling strategy will require a lower number of items be inspected if the actual percentage of defectives in the lot is ________.

Accepted Answer

very low o

Question 14

Discuss the two incorrect conclusions that can be made when using acceptance sampling.

Accepted Answer

The two incorrect conclusions are to rej

Question 15

Lot tolerance proportion defective (LTPD)can be defined as the:

Accepted Answer

A) quality level desired by the consumer. 
B) worst quality level the consumer can tolerate. 
C) probability of rejecting a good lot (i.e. ,when a lot is,in fact,acceptable to the consumer). 
D) probability of accepting a bad lot (i.e. ,when a lot is,in fact,not acceptable to the consumer). 
A) quality level desired by the consumer. 
B) worst quality level the consumer can tolerate. 
C) probability of rejecting a good lot (i.e. ,when a lot is,in fact,acceptable to the consumer). 
D) probability of accepting a bad lot (i.e. ,when a lot is,in fact,not acceptable to the consumer).

Question 16

A quality manager has established a sampling plan that calls for a sample size of 50 units and an acceptance number of 1 The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .07.What is the consumer's risk? Table G.1 is appended to this exam.

Accepted Answer

A) less than 0.08 
B) between 0.08 and 0.10 
C) between 0.10 and 0.12 
D) greater than 0.12 
A) less than 0.08 
B) between 0.08 and 0.10 
C) between 0.10 and 0.12 
D) greater than 0.12

Question 17

This OC curve represents a sampling plan developed for a lot size of 500,a sample size of 15,and an acceptance number of 2.The probability of acceptance for each of the first six points appears next to the plotted point.What is the average outgoing quality for an incoming fraction defective of 0.15?

Accepted Answer

A) less than 0.06 
B) greater than or equal to 0.06 but less than 0.07 
C) greater than or equal to 0.07 but less than 0.08 
D) greater than or equal to 0.08 
A) less than 0.06 
B) greater than or equal to 0.06 but less than 0.07 
C) greater than or equal to 0.07 but less than 0.08 
D) greater than or equal to 0.08

Question 18

As more firms initiate total quality management systems,the need for acceptance sampling will increase.

Accepted Answer

A) True 
 B)False

Question 19

A rectified inspection plan requires that:

Accepted Answer

A) a rejected lot be returned to the supplier. 
B) a rejected lot be subjected to 100% inspection. 
C) a sample with too many defectives be returned to the lot for mixing and resampling. 
D) all units in the sample be returned to the lot if it is rejected. 
A) a rejected lot be returned to the supplier. 
B) a rejected lot be subjected to 100% inspection. 
C) a sample with too many defectives be returned to the lot for mixing and resampling. 
D) all units in the sample be returned to the lot if it is rejected.

Question 20

A quality manager has established a sampling plan that calls for a sample size of 50 units and an acceptance number of 2.The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .07.What is the producer's risk? Table G.1 is appended to this exam.

Accepted Answer

A) less than 0.07 
B) between 0.07 and 0.09 
C) between 0.09 and 0.11 
D) greater than 0.11 
A) less than 0.07 
B) between 0.07 and 0.09 
C) between 0.09 and 0.11 
D) greater than 0.11

Exam 23: Acceptance Sampling Plans

The maximum value of the average outgoing quality over all possible values of the proportion defective is called the ________.

If the sample size is increased and the acceptance level is unchanged,the OC curve will have a higher consumer's risk.

A single-sampling plan by attributes is needed for a purchased component.Given the following information,what is the consumer's risk? Table G.1 is appended to this exam. Sample size = 50 Acceptance number (c)= 3 Acceptance quality level (AQL )= 0.01 Lot tolerance proportion defective (LTPD)= 0.04

Which one of the following alternatives will reduce the consumer's risk for a given AQL and LTPD?

A quality manager has established a sampling plan that calls for a sample size of 200 units and an acceptance number of 3.The supplier has agreed to a contract that calls for an AQL of 0.01 and an LTPD of .03.What is the producer's risk? Table G.1 is appended to this exam.

Which of the following is an example of a type II error?

________ is the risk that a lot with LTPD will be accepted-a type II error.

Why is an operating-characteristic (OC)curve useful?

A quality manager has established a sampling plan that calls for a sample size of 75 units and an acceptance number of 2.The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .04.What is the producer's risk? Table G.1 is appended to this exam.

A graph that demonstrates how well a sampling plan distinguishes between shipments that should be accepted and shipments that should be rejected is a(n)________.

A single-sampling plan has n = 200 and c = 6.A sample is taken and five items are found to be defective.What should be done?

In general,a sequential sampling strategy will require a lower number of items be inspected if the actual percentage of defectives in the lot is ________.

Discuss the two incorrect conclusions that can be made when using acceptance sampling.

Lot tolerance proportion defective (LTPD)can be defined as the:

A quality manager has established a sampling plan that calls for a sample size of 50 units and an acceptance number of 1 The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .07.What is the consumer's risk? Table G.1 is appended to this exam.

As more firms initiate total quality management systems,the need for acceptance sampling will increase.

A rectified inspection plan requires that:

A quality manager has established a sampling plan that calls for a sample size of 50 units and an acceptance number of 2.The supplier has agreed to a contract that calls for an AQL of 0.02 and an LTPD of .07.What is the producer's risk? Table G.1 is appended to this exam.

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