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A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are under control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results: For upper and lower control limits of .026 and .014, which machine(s), if any, appear(s) to be out-of-control for process proportion of defectives? machine #3 machine #4 machines #2 and #3 machines #3 and #4 none of the machines.

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M93107476

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