A manufacturer of automobile transmissions uses three different processes. Management ordered a study of the production costs to see if there is a difference among the three processes. A summary of the findings is shown next.

	Process 1	Process 2	Process 3	Total
Process totals ($100s)	137	108	107	352
Sample size	10	10	10	30
Sum of squares	1,893	1,188	1,175	4,256

1. In an ANOVA table, what are the degrees of freedom for the treatment source of variation?
2. In an ANOVA table, what are the degrees of freedom for the error source of variation?
3. In an ANOVA table, what are the total degrees of freedom?
4. State the null hypothesis and the alternate hypothesis
5. What is the critical value of F at the 5% level of significance?
6. What is the computed value of F?
7. What is the decision regarding the null hypothesis at the 5% significance level?