A process that is considered to be in control measures an ingredient in ounces. Below are the
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A process that is considered to be in control measures an ingredient in ounces. Below are the last 10 samples (Each of size n = 5) taken. The population standard deviation is 1.36.
(a) What is the process standard deviation σ? What is σx?
(b) If z = 3, what are the control limits for the mean chart?
(c) What are the control limits for the range chart?
(d) Is the process incontrol?
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