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The Mean of the Sample Means and the Pooled Standard

Question 45

Multiple Choice

The mean of the sample means and the pooled standard deviation of 50 samples of size 10 taken from a production process under control are found to be 225 and 16,respectively.The upper control limit for the The mean of the sample means and the pooled standard deviation of 50 samples of size 10 taken from a production process under control are found to be 225 and 16,respectively.The upper control limit for the chart is: A) 231.79 B) 240.18 C) 218.21 D) 209.82 chart is:


A) 231.79
B) 240.18
C) 218.21
D) 209.82

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