Q1. Control charts for X and R are maintained on a process. After 20 preliminary subgroups each of size 3 are evaluated, you have the following data: | x = 5,502 Σ R = 60 (a) Set up the X, R control charts using these data. (Use 3-Sigma Control Limits) i) What is the point estimate of o? ii) What is the estimated standard deviation of R? iii) What is the center line of R control chart iv) What is UCL of R control chart v) What is LCL of R control chart

Q1. Control charts for X and R are maintained on a process. After 20 preliminary subgroups each of size 3 are evaluated, you have the following data: | x = 5,502 Σ R = 60 (a) Set up the X, R control charts using these data. (Use 3-Sigma Control Limits) i) What is the point estimate of o? ii) What is the estimated standard deviation of R? iii) What is the center line of R control chart iv) What is UCL of R control chart v) What is LCL of R control chart

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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