Homework SourseA manufacturer of automobile transmissions uses three differ
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 below.
What are the total degrees of freedom?
| Process 1 | Process 2 | Process 3 | Total | |
| Process Totals ($100\'s) | 126 | 110 | 100 | 336 |
| Sample Size | 9 | 9 | 9 | 27 |
| Sum of Squares | 1,891 | 1,180 | 1,177 | 4,248 |
Solution
Sample size = 9+9+9 = 27
Degree of freedom = 27-1 = 26
