Find an equation of the parabola whose graph is shown. 
Definitions:
Null Hypothesis
A statement or assumption that there is no relationship or effect in the population from which a sample was drawn, in statistical testing.
Research Hypothesis
A statement made by a researcher predicting a relationship between two variables in a study.
Differences
A term referring to the distinctions or disparities between two or more entities or values.
One-tailed Test
A statistical test that determines the direction of a relationship or difference, testing for either a positive or negative effect only.
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