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Presidential power has increased over time. What explains this development? Briefly discuss three historical examples that illustrate an increase in presidential power. Has the increase in presidential power been a mostly positive, neutral, or negative development? Use examples to support your argument.
Pooled Variance
A method used to estimate the variance of two or more populations when the mean of each population may differ but the true variance is assumed to be the same.
Standard Error
The typical deviation found within the distribution of samples for a statistic, usually referring to the mean.
Independent Samples
Independent samples refer to two or more groups of data that are collected from separate, non-overlapping populations, ensuring they are not influenced by each other.
Normal Populations
The term "normal populations" relates to groups or sets of entities that exhibit characteristics distributed according to a normal (Gaussian) distribution.
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