2710 001 FINAL A FALL 09 SOLUTIONS

If the meancenterline of c chart is 608 the lower

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20. If the mean/centerline of C chart is 6.08; the Lower Control Limit is: A. 0.00* B. 5.93 C. 4.07 D. 1.66 Problems 21 through 22 use the following information. Fifty samples of 60 items each were inspected for a process that manufactures e-readers. In the 50 samples a total of 300 were found to be defective. 21. What is Centerline of this Control Chart?
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22. This process is: Use the following data for questions #23 through #26. The following data shows the 10 samples to be used for constructing control charts for Vitamin B content (milligrams) in a vitamin blend. Assume a sample size of 5. Sample Mean Range 1 2.8 0.9 2 4.2 0.2 3 3.7 0.6 4 3.9 1.1 5 2.6 0.5 6 3.3 0.2 7 2.9 0.9 8 3.4 0.5 9 2.7 0.3 10 2.8 1.0 Totals 32.3 6.2 23. The center line for the R Chart is: A. 1.10 B. 0.77 B. 6.20 C. 0.62* 24. The center line for the X-Bar chart is:
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25. The upper control limit for the X-bar Chart is: A. 3.59* B. 2.87 C. 6.30 D. 5.00 26. The upper control limit for the R Chart is: 27. Choose the statement that is FALSE .
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