In: Statistics and Probability
The following data are from an experiment designed to
investigate the perception of corporate ethical values...
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 |
8 |
10 |
9 |
7 |
10 |
10 |
6 |
9 |
9 |
7 |
9 |
8 |
8 |
10 |
9 |
6 |
9 |
9 |
- Compute the values identified below (to 1 decimal, if
necessary).
Sum of Squares, Treatment |
|
Sum of Squares, Error |
|
Mean Squares, Treatment |
|
Mean Squares, Error |
|
- 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 Selectless than .01between .01 and
.025between .025 and .05between .05 and .10greater than .10Item
6
What is your conclusion?
SelectConclude the mean perception scores for the three groups are
not all the sameCannot conclude there are differences among the
mean perception scores for the three groupsItem 7
- 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 |
1 - 2 |
|
SelectSignificant differenceNo significant differenceItem
10 |
1 - 3 |
|
SelectSignificant differenceNo significant differenceItem
12 |
2 - 3 |
|
SelectSignificant differenceNo significant differenceItem
14 |