One year, the mean age of inmates on death row was 40.6 years. A sociologist wondered whether

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One year, the mean age of inmates on death row was 40.6 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 39.2, with a standard deviation of 8.1. Construct a \(95 \%\) confidence interval about the mean age. What does the interval imply?

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