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An Chart Is Being Developed Using 25 Samples of Size

Question 21

Multiple Choice

An chart is being developed using 25 samples of size 8 each.The average of 25 sample means is 6.20.The average of the 25 ranges is 0.30.The upper control limit is ___.


A) 6.573
B) 6.382
C) 6.500
D) 6.280
E) 6.312

Correct Answer:

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