Question 1

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

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Question 2

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

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Question 3

The AOQ is often lower for a supplier with a high fraction defective than for a supplier with a comparatively lower fraction defective.Why wouldn't a supplier with a lower fraction defective always have a better AOQ?

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Question 4

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

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Question 5

If you were interested in minimizing the average number of items inspected,which sampling plan would you choose? Why?

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Question 6

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?

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Question 7

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

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Question 8

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

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Question 9

$$\begin{array} { | c | c | c | } 
\hline n & \begin{array} { c } 
\text { Producer's } \
\text { Risk } \
( p = \mathrm { AQL } )
\end{array} & \begin{array} { c } 
\text { Consumer's } \
\text { Risk } \
( p = \mathrm { LTPD } )
\end{array} \
\hline 60 & 0.122 & 0.126 \
80 & 0.191 & 0.048 \
100 & 0.264 & 0.017 \
120 & 0.332 & 0.006 \
\hline
\end{array}$$
-A single-sampling plan by attributes is needed for a purchased component.Table I.1 is above.
Sample size = 100
Acceptance number (c)= 2
Acceptance quality level (AQL)= 0.01
Lot tolerance proportion defective (LTPD)= 0.04
Given the preceding information:
a.What is the producer's risk,??
b.What is the consumer's risk,??
c.Draw the OC curve for this plan.

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Question 10

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

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Question 11

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

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Quiz 18: Acceptance Sampling Plans