Multiple Choice
Random samples of four items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, ΣX = 15,350 and ΣR = 411.4. To construct a range chart, what is the upper control limit (UCL) for the range?
A) 37.553
B) 411.4
C) 0.00
D) 102.85
Correct Answer:
Verified
Correct Answer:
Verified
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