Question 1

Which one of the following actions will decrease the producer's risk?

Accepted Answer

A) Increase n and keep c constant. 
B) Decrease n and keep c constant. 
C) Keep n constant and decrease c. 
D) Increase n and decrease c. 
A) Increase n and keep c constant. 
B) Decrease n and keep c constant. 
C) Keep n constant and decrease c. 
D) Increase n and decrease c. B

Question 2

A single-sampling plan by attributes is needed for a purchased component.Given the following information,what is the producer's risk? Table G.1 is appended to this exam. Sample size = 75
Acceptance number (c)= 2
Acceptance quality level (AQL )= 0.01
Lot tolerance proportion defective (LTPD)= 0.04

Accepted Answer

A) .01 
B) .02 
C) .03 
D) .04 
A) .01 
B) .02 
C) .03 
D) .04 D

Question 3

Which one of the following alternatives will reduce the producer'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) Increase n and reduce c. 
D) Increase alpha. 
A) Reduce n and keep c constant. 
B) Increase n and keep c constant. 
C) Increase n and reduce c. 
D) Increase alpha. A

Question 4

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 5

________ is the worst level of quality that the customer can tolerate.

Accepted Answer

Lot tolera

Question 6

________ is the quality level desired by the consumer.

Accepted Answer

Acceptable

Question 7

Acceptance sampling is an inspection procedure used to determine whether to accept or reject a specific quantity of material.

Accepted Answer

A) True 
 B)False

Question 8

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 9

Which one of the following will increase the consumer's risk?

Accepted Answer

A) Decrease sample size and hold constant the number of defective items in a sample. 
B) Decrease the acceptable number of defective items in a sample and hold constant the sample size. 
C) Increase the sample size and decrease the acceptable number of defective items in a sample. 
D) Decrease the acceptable quality level and hold constant both sample size and the acceptable number of defective items in a sample. 
A) Decrease sample size and hold constant the number of defective items in a sample. 
B) Decrease the acceptable number of defective items in a sample and hold constant the sample size. 
C) Increase the sample size and decrease the acceptable number of defective items in a sample. 
D) Decrease the acceptable quality level and hold constant both sample size and the acceptable number of defective items in a sample.

Question 10

An operating characteristic curve is a plot of the probability of accepting the lot against the proportion defectives.

Accepted Answer

A) True 
 B)False

Question 11

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 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

An item is purchased with one surface polished to a specified finish quality.From each incoming shipment,a sample of items is randomly selected and the polished surface of each sample item is compared with a standard and judged to be either acceptable or unacceptable.The following parameters have been established: AQL = 0.02,= 0.05,LTPD = 0.09,and = 0.10.Table G.1 is appended to this exam.What are the sample size and the acceptance number?

Accepted Answer

A) n = 89,c = 4 
B) n = 39,c = 1 
C) n = 43,c = 1 
D) n = 237,c = 15 
A) n = 89,c = 4 
B) n = 39,c = 1 
C) n = 43,c = 1 
D) n = 237,c = 15

Question 14

Use Table G.1 for the following question.What is the acceptance number of a single-sampling plan if n = 400,AQL = 0.002,and α= 0.01?

Accepted Answer

A) c = 0 
B) c = 1 
C) c = 2 
D) c = 3 
A) c = 0 
B) c = 1 
C) c = 2 
D) c = 3

Question 15

Discuss producer's risk and consumer's risk.

Accepted Answer

Producer's risk is the chance that good

Question 16

A lot of 2,000 items has just arrived.A single sampling calls for a sample size of 100 and c = 3.What is the average outgoing quality limit,assuming that all defectives in the entire lot are replaced if it is rejected and all defectives are replaced in the sample if it is accepted? Table G.1 is appended to this exam.

Accepted Answer

A) less than or equal to 0.0150 
B) greater than 0.0150 but less than or equal to 0.0175 
C) greater than 0.0175 but less than or equal to 0.0200 
D) greater than 0.0200 
A) less than or equal to 0.0150 
B) greater than 0.0150 but less than or equal to 0.0175 
C) greater than 0.0175 but less than or equal to 0.0200 
D) greater than 0.0200

Question 17

A sample of 100 items is randomly selected from a shipment of incoming materials.AQL and LTPD have been established at 0.01 and 0.07,respectively.When four or more defective items are found in a sample,the shipment is rejected.What is the value of β? Table G.1 is appended to this exam.

Accepted Answer

A) less than or equal to 0.05 
B) greater than 0.05 but less than or equal to 0.10 
C) greater than 0.10 but less than or equal to 0.15 
D) greater than 0.15 
A) less than or equal to 0.05 
B) greater than 0.05 but less than or equal to 0.10 
C) greater than 0.10 but less than or equal to 0.15 
D) greater than 0.15

Question 18

Rectified inspection occurs when all defective items in the lot are replaced with good items if the lot is rejected and any defective items in the samples are replaced if the lot is accepted.

Accepted Answer

A) True 
 B)False

Question 19

This OC curve represents a sampling plan developed for a lot size of 1000,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 0.25?

Accepted Answer

A) less than 0.045 
B) greater than or equal to 0.045 but less than 0.055 
C) greater than or equal to 0.055 but less than 0.065 
D) greater than or equal to 0.065 
A) less than 0.045 
B) greater than or equal to 0.045 but less than 0.055 
C) greater than or equal to 0.055 but less than 0.065 
D) greater than or equal to 0.065

Question 20

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

Exam 22: Acceptance Sampling Plans

Which one of the following actions will decrease the producer's risk?

A single-sampling plan by attributes is needed for a purchased component.Given the following information,what is the producer's risk? Table G.1 is appended to this exam. Sample size = 75 Acceptance number (c)= 2 Acceptance quality level (AQL )= 0.01 Lot tolerance proportion defective (LTPD)= 0.04

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

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

________ is the worst level of quality that the customer can tolerate.

________ is the quality level desired by the consumer.

Acceptance sampling is an inspection procedure used to determine whether to accept or reject a specific quantity of material.

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

Which one of the following will increase the consumer's risk?

An operating characteristic curve is a plot of the probability of accepting the lot against the proportion defectives.

A rectified inspection plan requires that:

Use Table G.1 for the following question.What is the acceptance number of a single-sampling plan if n = 400,AQL = 0.002,and α= 0.01?

Discuss producer's risk and consumer's risk.

A sample of 100 items is randomly selected from a shipment of incoming materials.AQL and LTPD have been established at 0.01 and 0.07,respectively.When four or more defective items are found in a sample,the shipment is rejected.What is the value of β? Table G.1 is appended to this exam.

Rectified inspection occurs when all defective items in the lot are replaced with good items if the lot is rejected and any defective items in the samples are replaced if the lot is accepted.

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

Using Operations to Create Value

Process Strategy and Analysis

Quality and Performance

Capacity Planning

Constraint Management

Lean Systems

Project Management

Forecasting

Inventory Management

Operations Planning and Scheduling

Resource Planning

Supply Chain Design

Supply Chain Logistic Networks

Supply Chain Integration

Supply Chain Sustainability

Decision Making

Waiting Lines

Special Inventory Models

Linear Programming

Simulation

Financial Analysis

Measuring Output Rates

Learning Curve Analysis

Operations Scheduling

Layout

Filters