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1. SPC is one of a number of tools which can be used to improve manufacturing quality standards.
(a) Outline two techniques which can be used to decide where to put SPC effort most effectively.
(b) State 3 ways in which the application of SPC can improve quality standards.
(c) State the three basic elements of SPC.
2. From the data given on the next page, produce:
Data: Record of reasons for rejection of 80 components by 10 types of defects, A to K.
CEECEEKBEC
CCEBICKFKCC
CCEEEEJKJH
EEEECEFCCC
CBBOHFEEBE
AEDEBEBAHC
CKEOHFEEEC
HKEHEECACC.
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What is the probability in the sample?
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