Question: Consider a process mean of 40 millimetres. Samples, each having 8 observations, are used to determine if the process is in-control. The standard deviation of

Consider a process mean of 40 millimetres. Samples, each having 8 observations, are used to determine if the process is in-control. The standard deviation of the sampling distribution of the sample mean is approximately 1.0. What should be used as the upper control limit? Express your answer to the nearest first decimal place.

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