THE BMZ ACADEMY
@061 262 1185/068 053 8213
BMZ ACADEMY 061 262 1185/068 053 8213
, THE BMZ ACADEMY
Question 1
Which of the following statements is correct?
a) The probability of rejecting a lot of good or acceptable quality is called the producer’s risk.
b) The probability of accepting a lot of acceptable quality is called the consumer’s risk.
c) The AQL is the maximum percentage of nonconforming/defective components allowed.
d) LTPD is the percentage of non-defective components (level of poor quality) historically
experienced from a supplier.
e) An OC curve is a graphical method to assess the probabilities of acceptance for a
shipment, given the quality of the shipment.
Options:
1. a) and c)
2. a), c) and e)
3. b) and d)
4. b), c) and d)
5. a)
Question 2
See Figure 9A-3 on page 232 of the prescribed book. For a sampling plan with N = 200,
n = 5 and c = 2, determine the producer’s risk if the acceptable quality level is 3%.
Options:
1. 0.80
2. 0.20
3. 0.97
4. 0.03
5. 0.08
Question 3
Determine the consumer’s risk for a sampling plan with a sample size of n = 50, c = 1
and LTPD = 8%, by making use of the table below (Table 9A-2, p.233 of prescribed
book).
Options:
1. 0.24
2. 0.92
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