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 5 4 7 4 4 8 3 3 7 4 3 6 5 4 7 3 3 7
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 |
| 5 | 4 | 7 |
| 4 | 4 | 8 |
| 3 | 3 | 7 |
| 4 | 3 | 6 |
| 5 | 4 | 7 |
| 3 | 3 | 7 |
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 .05 to test for a significant difference in perception among the three groups.
Calculate the value of the test statistic (to 2 decimals).
The p-value is?
What is your conclusion?
c. Using .05, determine where differences between the mean perception scores occur.
Calculate Fisher's LSD value (to 2 decimals).
Test whether there is a significant difference between the means for marketing managers (1), marketing research specialists (2), and advertising specialists (3).
| Difference | Absolute Value | Conclusion |
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