Examlex
Strategic groupings help a firm identify barriers to mobility that protect a group from attacks by other groups.
Two-tailed Test
A statistical hypothesis test in which the area of rejection is on both sides of the sampling distribution, allowing for the possibility of an effect in two directions.
Independent Populations
Populations in which the outcomes or characteristics of a sample from one population are not affected by the outcomes or characteristics of a sample from another population.
Sampling Distribution
The probability distribution of a given statistic based on a large number of samples from the same population.
Sample Mean Difference
The difference between the means of two samples, used in hypothesis testing and estimation.
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