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Type I Error
Incorrectly refuting a correct null hypothesis, also labeled as a "false positive."
Null Hypothesis
A hypothesis stating there is no significant difference or effect, used as a starting point for statistical testing.
Significance Level
A threshold for determining whether an observed effect is statistically significant, often set at 0.05.
Alternative Hypothesis
A hypothesis that contradicts the null hypothesis, proposing a new effect or relationship.
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