Question: Only part B Q6. (15%) A process considered to be in control measures an ingredient in ounces. A quality inspector took 10 samples, each with

 Only part B Q6. (15\%) A process considered to be in

Only part B

Q6. (15\%) A process considered to be in control measures an ingredient in ounces. A quality inspector took 10 samples, each with 5 observations as follows: a) Using this information, obtain three-sigma (i.e., z=3 ) control limits for a mean control chart and control limits for a range chart, respectively. It is known from previous experience that the standard deviation of the process is 1.36.(10%) b) Discuss whether the process is in control or not. (5\%)

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