Question: 4. (40 pts.) Examine the Statistical Process Control outputs below. Answer the following questions. a. (8 pts.) What is the sample size? b. (8
4. (40 pts.) Examine the Statistical Process Control outputs below. Answer the following questions. a. (8 pts.) What is the sample size? b. (8 pts.) What is the number of samples? c. (8 pts.) What is the mean of sample 8; what is the range of sample 10? d. (8 pts.) Is this process in control? Explain--a simple Yes or No is insufficient. e. (8 pts.) What additional steps should the quality assurance team take? Mean Range UCL (Upper control limit) 12.6856 1.0193 CL (Center line) 12.36 0.67 LCL (Lower control limit) 12.0344 0 Sample Number Iteml 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 Sample 9 12.1 12.8 12.4 11.9 12.3 Sample 10 12.6 12.4 12.1 12.3 12.35 OOO Jan 0.4 0.9 0.5
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