Homework Sourse1 Engineers decided to improve the process They chose to run
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Engineers decided to improve the process. They chose to run a designed experiment on the process to improve hard bake process. Specifically, they wanted to investigate the effect of four factors on the resistivity (measured in ohm meters) of a silicon wafer. The engineers ran what is called a Designed Experiment. They varied all possible combinations of the four factors each set at a high and low level. The levels are coded in the data as 1 for \"high\" and -1 for \"low\". To vary all possible combinations of 4 factors, the engineers had to do 24 = 16 separate experiments.
Using Minitab and the file Resistivity_1.MTW(Table Shown Above), answer the following questions:
1. Make a scatterplot of each factor and the response (resistivity). Which of the four factors appear to have an impact on resistivity? For those factors, describe the relationship. (Note: since each factor only has two levels, these scatterplots should look a bit different than what you\'re used to seeing.)
| -1 | -1 | -1 | 1 | 30.307 |
| -1 | -1 | 1 | 1 | 25.917 |
| -1 | 1 | -1 | 1 | 30.614 |
| -1 | 1 | 1 | -1 | 38.839 |
| 1 | 1 | 1 | 1 | 39.018 |
| 1 | 1 | 1 | -1 | 46.887 |
| 1 | -1 | 1 | 1 | 40.797 |
| -1 | 1 | 1 | 1 | 31.992 |
| 1 | -1 | 1 | -1 | 46.462 |
| 1 | 1 | -1 | 1 | 38.639 |
| -1 | 1 | -1 | -1 | 37.504 |
| 1 | -1 | -1 | 1 | 35.447 |
| -1 | -1 | -1 | -1 | 34.287 |
| 1 | -1 | -1 | -1 | 45.145 |
| 1 | 1 | -1 | -1 | 44.892 |
| -1 | -1 | 1 | -1 | 34.981 |
Solution
