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| Sideshow explained it great as well. A P value less than 0.05 is considered the standard. this basically means that 95% of the time I am sure that the results will be similar to what I observed. (2bu/a gain). Some studies may set it at 70% which is no where near as close of a confidence level. If you have a lot of yield data then splitting a planter for a year can go a long way to telling you if a product is working. you can google how to calculate a P value for yourself and enter your own data. You dont reall "raise" your P value. you set it where you want it and run the math. the way to be more sure of youself is more replications. (why splitting a planter across many acres will give you great data.) Remember it might only tell you it worked this year on this soil with this weather etc. and may not work as good next year.. but certainly, better info than a windshield guess. | |
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How much do you believe the Becks PFR trials?
