Examlex
The use of contraceptive methods is generally far safer than pregnancy.
Samples And Populations
Refers to subsets of a larger group (samples) selected for analysis and the entire group (population) from which samples are drawn.
Multiple Populations
Refers to studying or analyzing data from more than one group or category to compare characteristics or outcomes.
Research Hypothesis
A specific, testable prediction about the expected outcome of a study, based on theoretical knowledge or previous research.
Null Hypothesis
A hypothesis that suggests there is no effect or no difference, and any observed effect is the result of sampling error.
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