Examlex
Which of the following affects the time that a horizontally projected object remains in the air?
Alternative Hypothesis
A statement that contradicts the null hypothesis and indicates that there is an effect or a difference.
Sets Of Variables
Groups of variables or elements that are related and can be manipulated, measured, or controlled in research.
Null Hypothesis
A hypothesis in statistical analysis that proposes there is no significant difference or effect, often tested in order to be rejected in favor of an alternative hypothesis.
Research Hypothesis
A statement predicting the nature of the relationship between two or more variables of interest in a study.
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