Exam 23: Acceptance Sampling Plans

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?

Increasing c while holding n constant decreases the ________ risk and increases the ________ risk.

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?

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

Describe the process of a double-sampling plan.

Replacing all defective items in a rejected lot and all defective items in a sample with good items is called ________ inspection.

Increasing c while holding n constant decreases the producer's risk and increases the consumer's risk.

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.

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?

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

A double-sampling plan has n1 = 50,n2 = 100,c1 = 2,and c2 = 4.Suppose on the first sample,five defectives were discovered.How many total items will be inspected before a decision is reached?

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

A double-sampling plan has n1 = 50,n2 = 100,c1 = 2,and c2 = 4.Suppose the first sample revealed two defectives.What should be done?

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 α? Table G.1 is appended to this exam.

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

Describe the process of a single-sampling plan.

This OC curve represents a single sampling plan conducted on a lot size of 200 with a sample size of 20 and an acceptance number of 1.The y-coordinates of the first few points have been labeled;the x coordinates appear on the x-axis.If the receiving company uses rectified inspection,what is the greatest fraction defective that will enter their production process?

The average outgoing quality (AOQ)is:

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

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.