Applying ANOVA and Nonparametric Tests.

Essay by jah_rule24 December 2005

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Applying ANOVA and Nonparametric Tests Simulation required for this weeks team exercises made students take part in four-month analysis of Praxidike Systems. Praxidike is a software firm that develops and provides a vast array of software solutions to a wide client base. This simulation involved analyzing variables like customer satisfaction and productivity. Students were required to elect which method of testing would be used and then present operational suggestions based on their results. Upon completing the simulation, team members gave their thoughts on the simulation exercise

One of three key lessons learned by the team was when to use the Kruskal-Wallis test to compare data for more than two populations. The Kruskal-Wallis is used to analyze data that does not have a normal distribution and/or the data has been deemed ordinal and not quantitative. Another key lesson learned is that if you do not consider the right variables, failing to consider correctly could lead to poor decisions.

You also have to carefully study test results to determine if something really has a bearing on the experiment's outcome.

By completing this simulation, one team member thought he or she would now be able to use the tools such as the Two- way ANOVA and Chi Square test to determine the effectiveness of sales people and study what factors most influence the success of new hires as they become acclimated to the sales field. Another learning team member felt that these tools would become relied upon tremendously in his workplace. The tests could be used to determine certain correlations between lagging production schedules and employee break times. The tests could also be used to determine the relationship between productivity and communication.

Finally, to the key decision maker in this simulation the team would like to suggest having more information on the amount...