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 9 7 5 8 7 6 7 6 5 8 6 4 9 7 5 7 6 5 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

Answer 1

	Marketing Managers	Marketing Research	Advertising
	9	7	5
	8	7	6
	7	6	5
	8	6	4
	9	7	5
	7	6	5
Sum =	48	39	30
Average =	8	6.5	5
∑​Xij^2​=	388	255	152
St. Dev. =	0.894	0.548	0.632
SS =	4	1.5	2
n =	6	6	6

Reject H0 if LSD> Absolute Value and conculde there is significant difference

	Absolute Value		Conclusion
1-2	1.5	1.5>0.87	Significant difference
1-3	3	3>0.87	Significant difference
2-3	1.5	1.5>0.87	Significant difference