The following data are from an experiment designed to investigate the perception

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 8 10 5 7 10 6 6 9 5 7 9 4 8 10 5 6 9 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 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).

Explanation / Answer

using ms-excel One Way anova of following data has been analysed

since p-value is less than alpha=0.05, we reject null hypothesis H0: all means are equal and conclude that  there is a significant difference between the means for marketing managers (1), marketing research specialists (2), and advertising specialists (3).

LSD=sqrt(2*MSE/r)*t(0.05,error df)=sqrt(2*0.5/6)*2.11=0.86

marketing Manager marketing research advertising 8 10 5 7 10 6 6 9 5 7 9 4 8 10 5 6 9 5

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