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The Mean of the Sample Means and the Pooled Standard

Question 104

Multiple Choice

The mean of the sample means and the pooled standard deviation of 25 samples of size 4 taken from a production process under control are found to be 150 and 10,respectively.The centerline for the The mean of the sample means and the pooled standard deviation of 25 samples of size 4 taken from a production process under control are found to be 150 and 10,respectively.The centerline for the chart is: A) 150 B) 100 C) 250 D) 6 chart is:


A) 150
B) 100
C) 250
D) 6

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