Question: Question 8 (1.5 points) A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under

Question 8 (1.5 points) A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results: Machine Measurements 21 15 17 16 25 22 25 23 26 23 22 Based on the X-bar chart control limits, which machine(s), if any, appears to have an out-of-control process mean? (A2=0.729) Machine #1 Machine #2 Machine #3 None of the Machines

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