I have five operators that perform any of six separate operations that follow in sequence. I am finding that my quality is not consistent and my pass rate varies based on who performs which operation. Is there a way to find which operator performing which operation is impacting my quality? The data in the table below is a sample so may not provide a result but gives an example of the data I can get. I am looking for the method for the analysis. Six variable and one result. Any help appreciated.
| Batch # | Operation 1 | Operation 2 | Operation 3 | Operation 4 | Operation 5 | Operation 6 | Pass Rate |
1 | Bl | Er | La | Br | To | To | 55% |
2 | Bl | Er | Al | Br | To | Er | 80% |
3 | Br | La | Er | La | Er | To | 70% |
4 | La | La | Er | Br | Er | To | 40% |
5 | To | Er | La | La | To | Er | 80% |
6 | To | To | Bl | La | To | Er | 66% |