Multiple Choice
Thirty samples of size 1200 were drawn from a manufacturing process and the number of defectives in each sample was counted.The mean sample proportion was 0.04.The upper control limit for the 3-sigma p chart is:
A) 0.0170.
B) 0.0570.
C) 0.1518.
D) 0.0230.
Correct Answer:
Verified
Correct Answer:
Verified
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