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Samples of n = 5 units are taken from a process every hour. The x-bar and...

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Statistics

Samples of n = 5 units are taken from a process every hour. Thex-bar and R-bar values for a particular quality characteristic aredetermined. After 25 samples have been collected, we calculatex-bar = 20 and R-bar = 4.56. a) What are the three-sigma controllimits for x-bar and R? b) Both charts exhibit control. Estimatethe process standard deviation. c) Assume that the process outputis normally distributed. If the specifications are 19 ± 5, what areyour conclusions regarding the process capability? d) If theprocess mean shifts to 24, what is the probability of not detectingthis shift on the first subsequent sample? .I want expertsolution

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