Question: A caality anslyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regari to
A caality anslyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regari to a particular qualify attribute. Accordingly, she inspected t,000 urits of output from each machine in random samples, with the following resuits Machieve total betlectives What is the sample froportin of defectives for machine si? o2) 8715 005 forst
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