The following data are from an experiment designed toinvestigate the perception of corporate ethical values amongindividuals who are in marketing. Three groups are considered:management, research and advertising (higher scores indicate higherethical values).
Marketing Managers | Marketing Research | Advertising |
7 | 9 | 9 |
6 | 9 | 10 |
5 | 8 | 9 |
6 | 8 | 8 |
7 | 9 | 9 |
5 | 8 | 9 |
- Compute the values identified below (to 1 decimal, ifnecessary).
Sum of Squares, Treatment | |
Sum of Squares, Error | |
Mean Squares, Treatment | |
Mean Squares, Error | |
- Use  = .05 to test for a significant difference inperception among the three groups.
Calculate the value of the test statistic (to 2 decimals).
 Â
The p-value is Selectless than .01between .01 and.025between .025 and .05between .05 and .10greater than .10Item6Â Â
What is your conclusion?
SelectConclude the mean perception scores for the three groups arenot all the sameCannot conclude there are differences among themean perception scores for the three groupsItem7Â Â
- Using  = .05, determine where differences between themean perception scores occur.
Calculate Fisher's LSD value (to 2 decimals).
 Â
Test whether there is a significant difference between the meansfor marketing managers (1), marketing research specialists (2), andadvertising specialists (3).
Difference | Absolute Value | Conclusion |
1 -Â Â 2 | | SelectSignificant differenceNo significant differenceItem10 |
1 -Â Â 3 | | SelectSignificant differenceNo significant differenceItem12 |
2 -Â Â 3 | | SelectSignificant differenceNo significant differenceItem14 |