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The Mean of the Sample Means and the Pooled Standard

Question 1

Multiple Choice

The mean of the sample means and the pooled standard deviation of 40 samples of size 5 taken from a production process under control are found to be 400 and 15,respectively.The lower control limit for the The mean of the sample means and the pooled standard deviation of 40 samples of size 5 taken from a production process under control are found to be 400 and 15,respectively.The lower control limit for the chart is: A) 460.37 B) 392.88 C) 379.88 D) None of these choices. chart is:


A) 460.37
B) 392.88
C) 379.88
D) None of these choices.

Correct Answer:

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