PhD Thesis Data Statistical Analysis Methods



hello! I have a problem. Im a soil scientist. Im trying to make an optimization about my thesis results. My PhD thesis was " Effects of some soil conditioners on soil physical properties" Its a field experiment. I applied 7 different materials to soil during 3 years. Also, I collected 2 soil samples for each year. I investigated 7 soil physical properties (Bulk density, SSI, field capacity, etc...) How could I desing it for optimization? How many factors and levels I have? How could I make it by Minitab? Thanks for helping advance.
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Steve Prevette

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I'll volunteer to give a hand. My undergrad degree was Civil Engineering, though must admit soils was my least favorite subject . . . and my MS is operations research.

I do see a warning sign - you have already collected the data, and now want to backfit your experimental design. . .

Drop me a PM if you'd like, I'll see what I can do to be of assistance.
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