Question: The Florida department of correction publishes an online death row fact sheet. It reports the average time on death row prior to execution as 11.72 years but provides no standard deviation. This mean is a parameter because it is calculated from the entire population of executed prisoners in Florida. Has the time spent on death row changed in recent years? According to the execution list linked to the same Website, the the six prisoners executed in Florida during the years 2003, 2004, and 2005 spend 25.62, 13.09, 8.74, 17.63, 2.80 and 4.42 years on death row respectively. (All were men although Aileen Wuornos, the serial killer portrayed by Charlize Theron in the 2003 Film monster, was among the three prisoners executed by the state of Florida in 2002; Wuornos spent 10.69 years on death row.) using the above information answer the following:

a. Write a hypothesis to address the question “has the time spent on death row changed in recent years?”

b. Using these data as “recent years” and the mean of 11.72 years as the comparison, answer the question base on your t statistic, using alpha of 0.05

c. Calculate the effect size using Cohen’s d

d. Evaluate the size of this effect.