References
- Anderson, D., D. Sweeney, & T. Williams (2008). Statistics for Business and Economics, 10th edition. Thomson South-Western, Mason, OH.
- Bowerman, B., R. O'Connell, & E. Murphree (2009). Business Statistics in Practice, McGraw Hill/Irwin, New York.
- Groebner, D. P. Shannon, P. Fry, & K. Smith (2008). Business Statistics, 7th edition. Pearson Education, Upper Saddle River, NJ.
- Levine, D., D. Stephan, T. Krehbiel, & M. Berenson (2008). Statistics for Managers, 5th edition. Pearson Education, Upper Saddle River, NJ.
- Makridakis, S., Wheelwright, S., & R. Hyndman (1998). Forecasting: Methods and Applications, 3rd edition. John Wiley and Sons, New York.