Again, what % of voices on the telephone are female vs male at any given moment, or day? It would be easy enough to find out. Jane Goodall knows the answer to the question...
Well, that’s researchable, but not definitive.
More women use vacuum cleaners, most likely, but that doesn’t tell you who invented it.
Jane Goodall knows a great deal, but Chimpanzee societies are not necessarily models for early humans. Even among chimpanzee tribes, considerable variation occurs.