Examlex
The major difference between a volume discount and a cross-media discount for advertisers is that in a cross-media buy an advertiser accumulates credit across a number of different vehicles rather than in just a single vehicle.
Test Statistic
A value calculated from sample data during a hypothesis test that is used to decide whether to reject the null hypothesis.
Null Hypothesis
In statistical hypothesis testing, it is the hypothesis that there is no effect or no difference, and it serves as the default or starting assumption.
Slope
In the context of linear regression, it's the amount by which the dependent variable is expected to change for a one-unit change in the independent variable.
Alternative Hypothesis
The hypothesis that proposes there is a statistically significant difference between two or more groups or variables.
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