Patricia B. Humphrey. "TI Graphing Calculator Manual with Solutions to Selected Problems" The Practice of Statistics in the Life Sciences (2nd ed). Ed. Brigitte Baldi and David S. Moore. New York, NY: W. H. Freeman, 2011.
isbn:9781429277580
source:http://bcs.whfreeman.com/psls2e/#t_616957____
Available at: http://works.bepress.com/patricia_humphrey/43