Color blindness in Africa. An anthropologist claims that color blindness is less common in societies that live by hunting and gathering than in settled agricultural societies. He tests a number of adults in two populations in Africa, one of each type. The proportion of color-blind people is significantly lower (P < 0.05)="" in="" the="" hunter-gatherer="" population.="" what="" additional="" information="" would="" you="" want="" to="" help="" you="" decide="" whether="" you="" believe="" the="" anthropologist's="">