The following data are from an experiment designed to investigate the perception of corporate ethical values among individuals who are in marketing. Three groups are considered: management, research and advertising (higher scores indicate higher ethical values).
Marketing Managers | Marketing Research | Advertising |
4 | 6 | 10 |
3 | 6 | 11 |
2 | 5 | 10 |
3 | 5 | 9 |
4 | 6 | 10 |
2 | 5 | 10 |
a. Compute the values identified below (to 2 decimal, if necessary).
Sum of Squares, Treatment | |
Sum of Squares, Error | |
Mean Squares, Treatment | |
Mean Squares, Error |
b. Use to test for a significant difference in perception among the three groups.
Calculate the value of the test statistic (to 2 decimals).
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