Examlex
Why would an airline reduce advertising during peak travel periods and boost its media schedule during slower travel months?
Null Hypothesis
A statement in inferential statistics that there is no effect or no difference, and any observed deviation from this state is due to chance.
Rejection Level
The threshold or critical value that determines whether to reject the null hypothesis in statistical hypothesis testing, often denoted by alpha.
P-value
A measure in statistical hypothesis testing that quantifies the evidence against a null hypothesis, with lower values indicating stronger evidence.
Sample Mean
The average of a set of observations or values taken from a sample of a population.
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