Examlex
One of the most popular commercially available classification systems based on psychographic measurements is Strategic Business Insights' VALS framework.
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.
Sample Means
Refers to the average values computed from multiple samples from a population, usually to estimate the population mean.
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