I need help with Anthropology. We are discussing primate and hominin origins currently. What could my hypothesis be if I was going to investigate whether a relationship exists between brain size and tool culture?

I have to write an essay by designing an experiement, and decide the significance of the results.

I have to consider cranial capacity/body size ratio, how this has changed through time. ALSO the differences between types of tools, materials used, how they are made etc.

Any help is appreciated!!

Thanks

Question

I need help with Anthropology. We are discussing primate and hominin origins currently. What could my hypothesis be if I was going to investigate whether a relationship exists between brain size and tool culture?

I have to write an essay by designing an experiement, and decide the significance of the results.

I have to consider cranial capacity/body size ratio, how this has changed through time. ALSO the differences between types of tools, materials used, how they are made etc. 

Any help is appreciated!!

Thanks