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 A medical investigation claims that the average number of infections per week at a hospital in Newark is 15.2. A

random sample of 15 weeks had a mean number of 16.2 infections. The sample standard deviation is 2. Is there enough evidence to reject the investigator's claim at ALPHA = 0.01? 

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H o : = 15.2 H a : = 15.2 Required... View the full answer

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