Examlex
Hierarchical structures of leadership were uncommon in early hunter-gatherer societies.
Sample Sizes
The count of data points or items chosen from a larger group for the purpose of statistical examination.
Pooled-variances T-test
A statistical method for comparing the means of two populations when it is assumed that both populations have equal variances.
Population Variances
A measure of the spread of a population's values, indicating how much the members of the population differ from the population mean.
Population Means
The average value of a set of characteristics within a total population.
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