+The **null hypothesis** is a foundational assumption proposing no significant difference or relationship exists. It serves as a baseline for [statistical testing](/wiki/statistical_testing), where data is gathered to see if there's enough evidence to [reject](/wiki/rejection) this claim of "no effect."
+## See also
+- [Alternative Hypothesis](/wiki/alternative_hypothesis)
+- [P-value](/wiki/p-value)
+- [Hypothesis Testing](/wiki/hypothesis_testing)
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