Acceptance Sampling– Static

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Question 1

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True/False

Acceptance sampling is applied to batches of items during the production process.

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False

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Question 2

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True/False

Acceptance sampling procedures are applicable for inspection both before and after production.

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False

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Question 3

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True/False

Flexible acceptance sampling revises the sampling plan in response to actual results.

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Question 4

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The purpose of acceptance sampling is to decide whether a batch of items satisfies pre-determined standards.

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Question 5

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A good sampling plan will occasionally reject a lot with very good quality.

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Question 6

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Acceptance sampling is most useful when the cost consequences of passing defectives are low.

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True

False

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Question 7

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Acceptance sampling procedures can be applied to both attribute and variables inspection.

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True

False

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Question 8

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In a single-sampling plan, the entire lot, or batch of items, is accepted or rejected based upon only one specified sized sample.

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Question 9

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A double-sampling plan requires a second sample of exactly twice the size of the first sample.

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Question 10

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Sampling plans are designed considering both the cost and time required for the inspection.

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Question 11

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In a double-sampling plan, a second sample may not be taken if the results of the first sample are conclusive.

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Question 12

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Acceptance sampling is a form of inspection applied to items during an ongoing process.

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Question 13

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In a double-sampling plan, a second sample is taken if the results of the first sample are inconclusive.

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True

False

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Question 14

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The ability of an acceptance sampling plan to discriminate between good and bad lots is described by its operating characteristic curve.

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True

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Question 15

Multiple Choice

A graphical representation that shows the risk of: (1) accepting bad lots and (2) rejecting good lots is called the:

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indifference curve.

operating characteristic curvE.

sampling plan.

inspection curve.

operating inspection plan.

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Question 16

Multiple Choice

Which of the following is associated with consumer's risk?

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LTPD

AQL

AOQL

SPC

Cpk

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Question 17

Multiple Choice

Which of the following is associated with producer's risk?

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LTPD

AQL

AOQL

SPC

Cpk

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Question 18

Multiple Choice

When is the average outgoing quality level (AOQL) at its peak?

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when the incoming fraction defective is at a minimum

when the incoming fraction defective is at a maximum

when the outgoing fraction defective is at a minimum

when the outgoing fraction defective is constant

when the outgoing fraction defective begins to increase

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Question 19

Multiple Choice

Suppose that only two incoming fraction defective levels, 4 percent and 8 percent, are possible. These incoming fraction defective levels are equally likely. At a 4 percent incoming fraction defective, there's a 60 percent chance that a lot will be accepted. At 8 percent incoming fraction defective, there's a 20 percent chance that a lot will be accepted. Lots that are not accepted are subject to 100 percent sorting. What is average outgoing quality?

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40 percent

20 percent

10 percent

4 percent

2 percent

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Question 20

Multiple Choice

Suppose that only two incoming fraction defective levels, 2 percent and 6 percent, are possible. The 2 percent incoming fraction defective level is twice as likely as the 6 percent. At a 2 percent incoming fraction defective, there's an 80 percent chance that a lot will be accepted. At 6 percent incoming fraction defective, there's a 20 percent chance that a lot will be accepted. Lots that are not accepted are subject to 100 percent sorting. What is average outgoing quality (approximately)?

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1.60 percent

1.47 percent

1.20 percent

.73 percent

.80 percent

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