20. A study by Steele and Pinto (2006) examined whether employees's level of trust in their direct supervisor was related to their job satisfaction. Using the fictional data below test whether groups that differed in trust (low, medium, high) also differed in job satisfaction (higher scores means happier). Show all work to receive full credit. Include an ANOVA summary table of your results and an APA conclusion.

Low Trust	Med Trust	High Trust
10	20	30
21	16	34
6	23	18
15	18	29

a. What is the IV? The DV? The null hypothesis being tested? What is the Alt hypothesis?

b. What is the df(Between)? df(Within)? the critical F value from the table for this F-test?

c. Complete the ANOVA Source table. What are the SS_between, SS_{within, SStotal?}MS_between and MS_within? What is the F Statistic?

d. At the 5% significance level, are the scores among the different groups significantly different? Write an APA format conclusion including IV and DV and APA stats).