Question: A human resources manager for a large corporation wants to know whether there are differences in employee job satisfaction among three company locations. He chooses a random sample of 10 employees from each location and gives them an "Employee Satisfaction Survey." The final score of this survey is taken as a measure of employee satisfaction and can range from a low of 0 to a high of 10. Here are the scores for each employee in each location:

What kind of experimental design did the human resources manager use? Identify the factor(s) and level(s) of each. Perform the appropriate statistical test to determine with α = 0.05 whether there is a difference in job satisfaction among the three locations. Show all your work and provide an ANOVA summary table of your results. Finally, using an appropriate post hoc test, determine whether there are any differences among the groups.