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Standard Error
A statistic that measures the dispersion or variability of a sample statistic from the population parameter, used to infer the precision of the sample mean.
Null Hypothesis
A statement used in statistical testing that proposes no significant difference or effect, serving as a default position until evidence suggests otherwise.
Sample Proportion
The part of a sample that has a particular attribute, often used in statistical analysis.
Margin of Error
An indicator of the confidence in the results of a survey or experiment, reflecting the maximum expected difference between the true population parameter and a sample estimate.
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