Which of the following steps would successfully complete the following reaction? 
Definitions:
Null Hypothesis
The presumption in statistical testing that there is no significant effect or difference, serving as the default position until evidence suggests otherwise.
Dependent Means
A statistical term often used in the context of comparing two sets of related or matched data to determine if there's a significant difference between them.
Degrees of Freedom
The number of independent values or quantities that can be assigned to a statistical distribution without violating any constraints.
Dependent Means
Refers to the average values of two sets of related data, typically used in paired tests or studies where the same subjects are measured under different conditions.
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