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Mathematics, 16.04.2020 20:06 famouzgal

One year, the mean age of an inmate on death row was 39.2 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 37.6, with a standard deviation of 9.89.8. Construct a 95% confidence interval about the mean age. What does the interval imply?

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One year, the mean age of an inmate on death row was 39.2 years. A sociologist wondered whether the...
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