Patricia B. Humphrey. "Minitab Manual with Solutions to Selected Problems" The Practice of Statistics for Business and Economics (3rd ed). Ed. David S. Moore, George P. McCabe, Layth Alwan, Bruce Craig, William M. Duckworth. New York, NY: W. H. Freeman, 2010.
isbn:9781429246146
source:http://www.macmillanhighered.com/Catalog/product/practiceofstatisticsforbusinessandeconomics-thirdedition-moore
Available at: http://works.bepress.com/patricia_humphrey/42