Question

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 9 8 3 9 9 2 8 8 3 8 7 4 9 8 2 8 8 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 What is your conclusion? 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 1 - 3 2 - 3

Answer 1

H0: There is no significance difference among the means of three groups

H1; There is significance difference among the means of three groups

Let the los be alpha = 5%

From the given data

	1	2	3	4	5	6
							Total	Ti^2/ni
Managers	4	3	2	3	4	2	18	54
Research	9	9	8	8	9	8	51	433.5
Advertising	8	9	8	7	8	8	48	384
						Total G	117	871.5

Here P-value < alpha 0.05 so we reject H0

Thus we conclude that   there is significance difference among the means of three groups

Fisher's LSD Test: