Exam 22: Acceptance Sampling Plans

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 = 100 Acceptance number (c)= 1 Acceptance quality level (AQL )= 0.01 Lot tolerance proportion defective (LTPD)= 0.05

A double-sampling plan has a lower ________ than a single-sampling plan.

What is the basic idea of incoming inspection? Why does a producer perform it?

________ is the risk that the sampling plan will fail to verify an acceptable lot's quality and thus reject it-a type I error.

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 = 100 Acceptance number (c)= 1 Acceptance quality level (AQL )= 0.02 Lot tolerance proportion defective (LTPD)= 0.07

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

Use Table G.1 for the following question.What is the acceptance number of a single-sampling plan if n = 300,LPTD = 0.02,and = 0.15?

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)= 3 Acceptance quality level (AQL )= 0.01 Lot tolerance proportion defective (LTPD)= 0.04

The AOQL is the highest point in the plot of AOQ against the percentage of defectives in the lot.

A company is developing an acceptance sampling plan to monitor quality.The acceptable quality level (AQL)is 0.01,and a sampling plan having c = 5 is being considered.If a producer's risk of 0.03 is desired,what should be the sample size? Table G.1 is appended to this exam.

A small ________ can be disregarded in AOQ calculations involving an extremely large lot size.

Champion Cooling Company has developed a sampling plan calling for a sample size of 25 and an acceptance number of 1.The proportion defective and probability of acceptance appear in the table.Floyd Electric,their supplier ships whatever Champion Cooling asks;sometimes the lot size is as small as 30 units and it has been as large as 10,000 units.Champion Cooling decides to stick with what they know,a sample size of 25 and an acceptance number of 1 despite advice to the contrary.Which statement regarding their sampling plan is BEST?

The management of a company wishes to develop a new acceptance sampling plan that keeps acceptable quality level,lot tolerance proportion defective,and c constant.If the sample size (n)is increased,compared to the prior plan,which of the following is TRUE?

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

A double-sampling plan is usually less expensive than a single-sampling plan if the lot has a high number of defectives.

Relative to an acceptance sampling plan,what is the net effect of increasing n while holding c constant?

The lot tolerance proportion defective (LTPD)is the customer's desired level of quality.

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

A sequential sampling plan generally lowers the ANI.

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 limit?