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An R Chart Is to Be Developed for Use in Quality

Question 60

Multiple Choice

An R Chart is to be developed for use in quality control.The average of the ranges is calculated to be 0.60.This was based on several samples of size 7 each.What would the lower control limit be?


A) 0.046
B) 0.000
C) 1.154
D) 4.200
E) 0.004

Correct Answer:

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