Question: UCL (Upper control limit) Mean Range 12.6856 1.0193 CL (Center line) 12.36 0.67 LCL (Lower control limit) 12.0344 0 Sample Number Item1 Item2 Item3

UCL (Upper control limit) Mean Range 12.6856 1.0193 CL (Center line) 12.36

UCL (Upper control limit) Mean Range 12.6856 1.0193 CL (Center line) 12.36 0.67 LCL (Lower control limit) 12.0344 0 Sample Number Item1 Item2 Item3 Item4 Mean Range Sample 1 12.2 12.6 12 12.1 12.225 0.6 Sample 2 11.9 12.5 12.4 12.7 12.375 0.8 Sample 3 12 12.2 12.9 13.1 12.55 1.1 Sample 4 12.5 12.5 12.4 12.8 12.55 0.4 Sample 5 12.2 12.8 12.7 12 12.425 0.8 Sample 6 12.1 12.5 11.8 12.3 12.175 0.7 Sample 7 12.3 12.4 12.8 12.4 12.475 0.5 Sample 8 12 12.1 12.4 12.2 12.175 0.4 Sample 9 12.1 12.8 12.4 11.9 12.3 0.9 Sample 10 12.6 12.4 12.1 12.3 12.35 0.5 What is the mean of sample 8. Write your answer according to 3 decimal places.

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