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Use the following to answer questions :
(Gridlines on each graph are spaced one unit apart.)
-Find (f - g)(-1).
National Average
The arithmetic mean or median of certain measurements or statistics considered across a whole nation.
One-sample T-test
A statistical test used to compare the mean value of a sample to a known value (usually the population mean) to see if there are significant differences.
Null Hypothesis
A statistical hypothesis that assumes no significant difference or effect exists within a set of given observations.
P-value
A measure in statistics that helps to determine the significance of results derived from a hypothesis test.
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