Examlex
The core regions of the modern world-system
Pooled Standard Deviation
A combined standard deviation used when variances from two or more groups are assumed to be equal for analysis.
Sample Means
The average value calculated from a sample of data, which estimates the mean of the entire population.
Control Limits
Statistically determined lines on a control chart outside of which a process is considered to be out of control or unnatural variations.
Assignable Variation
Changes within a process stemming from particular causes, instead of occurring randomly.
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