Question: 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.

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 process standard deviation, is 1.36. 1 10 9 10 9 12 2 9 9 11 11 10 3 13 9 10 10 9 4 10 10 11 10 10 Samples 5 6 12 10 10 10 9 8 11 12 10 9 What is 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 in control? a. 7 10 11 10 8 9 8 13 10 8 10 8 9 8 8 12 12 9 10 10 12 9 8 12

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