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

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  to test for a significant difference in perception among the three groups.

Calculate the value of the test statistic (to 2 decimals).

The -value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .10greater than .10Item 6

What is your conclusion?

c. Using , 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

Answer 1

For the given data using Anova single factor in Excel we get output as

Anova: Single Factor
SUMMARY
Groups	Count	Sum	Average	Variance
Marketing Managers	6	30	5	0.8
Marketing Research	6	39	6.5	0.3
Advertising	6	48	8	0.4
ANOVA
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	27	2	13.5	27	1.07E-05	3.68232
Within Groups	7.5	15	0.5
Total	34.5	17

So from the above output