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Mean length of time on death row

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A random survey of 75 death row inmates revealed that the mean length of time on death row is 17.4 years with a standard deviation of 6.3 years. Conduct a hypothesis test to determine if the population mean time on death row could likely be 15 years.

Is the population standard deviation known and, if so, what is it?

Reference no: EM131822391

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