The director of the Madison County jail is planning to testify before the Wisconsin state legislature with the goal of obtaining more state funds for the county jail system. In preparing his remarks, the director plans to present data on the average number of days that prisoners remain in jail. Th e director believes that his case will be more compelling if he can show that the average stay for prisoners is greater than 21 days. Th e director asks you, as chief operations officer for the jail, to calculate descriptive statistics for a random sample of 250 prisoners processed in the last 9 months. Calculate the mean and standard deviation for these data. What can you tell the director about his 21-day target?