Question # 1

An organizational psychologist was interested in whether individuals working in different sectors of a company differed in their attitudes toward the company. The results for the three people surveyed in development were 10, 12, and 11; for the three in the marketing department, 6, 6, and 8; for the three in accounting, 7, 4, and 4; and for the three in production, 14, 16, and 13 (higher numbers mean more positive attitudes). Was there a significant difference in attitude toward the company among employees working in different sectors of the company at the .05 level?

Step I:

-Research hypothesis: All the individuals working in different sectors of a company differed in their attitudes toward the company.

-Null hypothesis: All the individuals' attitudes towards the company are equal.

Step II: Give the characteristics of the comparison distribution

Step III: What is (are) the cut-off(s):

For the 0.05 significance level, cutoff is 3.89.

Step IV: Compute the test statistic to determine sample's score on the comparison distribution

-Compute the between-group estimate of variance:

-Compute the within-group estimate of variance:

-Compute the F statistic:

Step V: What is the decision? State your answer in the APA format.