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X A shipment of 350 new blood pressure monitors have arrived. Tests are done on 60 of the new monitors and it is found that

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X A shipment of 350 new blood pressure monitors have arrived. Tests are done on 60 of the new monitors and it is found that 8 of the 60 give incorrect blood pressure readings. Find the 80% confidence interval for the proportion of all the monitors that give incorrect readings. Answer the following questions: 1. Multiple choice: Which equation would you use to solve this problem? A X - Z

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