Complete the following steps to specify which columns are the factors in the design.
In this worksheet, Time and Temperature are numeric factors. Catalyst is a text factor. The factors are the only columns that Minitab requires to define a design.
The columns Blocks, Standard Order, Run Order, and Center Point contain optional information that you can specify if the information is in the worksheet. If this information is not already in the worksheet, then Minitab creates these columns.
C1 | C2 | C3 | C4 | C5 | C6 | C7 |
---|---|---|---|---|---|---|
Time | Temperature | Catalyst | Blocks | Standard Order | Run Order | Center Points |
50 | 200 | A | 1 | 4 | 1 | 1 |
20 | 200 | A | 1 | 3 | 2 | 1 |
50 | 200 | B | 1 | 8 | 3 | 1 |
50 | 150 | B | 1 | 6 | 4 | 1 |
20 | 150 | A | 1 | 1 | 5 | 1 |