r the mean age of an inmate on death row was 39 9 years A sociologist wonder the mean age of a death row inmate has changed since then She randomly sel w inmates and finds that their mean age is 38 2 with a standard deviation of 8 9 ct a 95 confidence interval about the mean age What does the interval imply k the icon to view the table of critical t values egers or decimals Do not round Ea 95 confidence interval about the mean age confidence the mean age of a death row inmate is between two decimal places as needed years and ye