Examlex
Each of your three main points should express one clear idea.
Null Hypothesis
In statistical analysis, it is the presumption that there is no effect or no difference and serves as the default or starting assumption for testing.
Car Engine
The component of a vehicle that converts fuel into mechanical energy, propelling the vehicle forward.
Null Hypothesis
A statement or hypothesis that suggests there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.
Standard Deviation
A measure of how spread out numbers are in a dataset, indicating the variation or dispersion around the mean.
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