An anthropologist is interested in the proportion of
Chapter , Problem 5.64(choose chapter or problem)
An anthropologist is interested in the proportion of individuals in two Indian tribes with double occipital hair whorls. Suppose that independent samples are taken from each of the two tribes, and it is found that 24 of 100 Indians from tribe A and 36 of 120 Indians from tribe B possess this characteristic. Construct a 95% confidence interval for the difference pB pA between the proportions of these two tribes with occipital hair whorls.
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