Examlex
If fossils are most often found in sedimentary rock but sedimentary rock cannot be aged using radiometric methods,then how can a scientist know how old a fossil is?
Observed Data
Refers to the data that has been collected or measured directly in an experiment or study.
Calculated
Determined or derived by mathematical methods or processes.
Null Hypothesis
A default hypothesis that there is no effect or no difference, used as a basis for statistical testing.
Research Hypothesis
A specific, testable prediction about the expected outcome of a study based on theory or prior research.
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