# Question: and R charts with n 4 are used

and R charts with n = 4 are used to monitor a normally distributed quality characteristic. The control chart parameters are

Both charts exhibit control. What is the probability that a shift in the process mean to 790 will be detected on the first sample following the shift?

Both charts exhibit control. What is the probability that a shift in the process mean to 790 will be detected on the first sample following the shift?

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