11. Consider a process which, when in control, has X = 500 and σ = 25. (a) Determine the X and R control chart limits if n = 4. (b) Determine the X and R control chart limits if n = 9. (c) Determine the X and R control chart limits if n = 2. (d) Suppose that a shift in process centering occurred from = 500 to 530. Which subgroup size above yields an X chart that is best capable of detecting the shift? Why? What is the major disadvantage of using that sample size?

11. Consider a process which, when in control, has X = 500 and σ = 25. (a) Determine the X and R control chart limits if n = 4. (b) Determine the X and R control chart limits if n = 9. (c) Determine the X and R control chart limits if n = 2. (d) Suppose that a shift in process centering occurred from = 500 to 530. Which subgroup size above yields an X chart that is best capable of detecting the shift? Why? What is the major disadvantage of using that sample size?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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