James09 Posted January 5, 2021 Report Share Posted January 5, 2021 So, I'm working on my science fair project, and I'm at the point in the data analysis where I need the null hypothesis and alternative hypothesis. The null hypothesis is simple enough, but I'm having a lot of trouble with the alternative hypothesis. See, it needs to be a directional hypothesis, but my independent variable doesn't really accommodate one. In my project, I am testing different plectrum (music pick) materials to find how pitch is affected by the material. My materials are: cardboard, foamboard, wood, rubber, and 3D-printed plastic. A directional hypothesis would need to be something like "as temperature rises, the density will decrease", but I just can't think of one that would work when the independent variable is more qualitative than quantitative. If any of you have any suggestions or tips or anything like that, I'd be happy to hear them. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.