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 111 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