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Independent Samples
Samples that are collected from populations such that the selection of a sample does not influence the selection of the other.
Population Means
The average of a set of values in a population, representing the central tendency of the population data.
Sample Mean Difference
The difference between the mean values of two samples, used in statistical testing to compare two groups.
T-Test
A statistical test used to determine if there is a significant difference between the means of two groups.
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