Deck 10: Acceptance Sampling

Question 1

Which of the following is an advantage of sampling?

A) risk of accepting bad lots
B) risk of accepting good lots
C) less handling damage during inspection
D) risk of rejecting bad lots

Answer 1

C

Question 2

One of the reasons for using double sampling rather than single sampling is:

A) more information
B) reduced inspection
C)easier to find the process average
D) all of the above

Answer 2

reduced inspection

Question 3

Which of the following is not a valid method of sample selection?

A) stratification
B) random number
C) first come first serve
D) without bias

Answer 3

C

Question 4

Which of the following types of sampling would be selected for its lower administrative costs:

A) single
B) multiple
C) double
D) all of the above

Question 5

Determine the OC Curve for N = 2000, n = 50, c = 3.

Question 6

The abbreviation AOQL stands for:

A) Acceptable Optimum Quality Level
B) Average Optimum Quality Loc
C) Average Outgoing Quality Limit
D) none of the above
D) Acceptable Outgoing Quality Limit c returned to the consumer

Question 7

The Producer's risk is the risk:

A) of accepting lots of good quality
B) of rejecting lots of bad quality
C) of accepting lots of bad quality
D) of rejecting lots of good quality

Question 8

In the formation of lots, a lot should be:

A) suitable for materials handling
B) conformed to good packaging principles
C) homogeneous
D) none of the above

Question 9

OC curves that drop sharply at the top are characterized by:

A) advantageous to the consumer
B) advantageous to the producer
C) acceptance numbers of zero
D) require double sampling

Question 10

Which of the following sampling types has the smallest ASN value when the quality is very good:

A) single
B) double
C) multiple
D) tightened 108

Question 11

The AQL is given:

A) in lieu of the LQL
B) as the number of nonconformities
C) as a fraction
D) in percent

Question 12

The largest value of the average outgoing quality curve is called:

A) AOQ
B) best condition
C) worst condition
D) AOQL

Question 13

The curve which shows the amount inspected by both the producer and the consumer is called?

A) AOQ
B) ASN
C) ATI
D) AQL

Question 14

It is desired to have a single sampling plan where the risk of rejecting a 1.0%
nonconforming lot is 0.05. Determine the sample size for an acceptance number of 3.

Question 15

Determine the AOQ curve for N = 2000, n = 50, c = 0. Also, determine the AOQL and locate it on the curve. Ordered pairs from the OC curve are (0.5%, 0.778), (1.0%,0.607), (2.0%, 0.368), (3.0%, 0.223), (6.0%, 0.050).

Question 16

When sampling, the most important consideration is:

A) the population is normal
B) the assignment of serial numbers
C) the sample is representative of the population
D) random number table