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Counter service allows customers to sit at a counter facing the production area.
Unemployment Rate
The fraction of people in the labor force who are without jobs and are looking for employment.
Random Sample
A subset of individuals chosen from a larger set (population) in such a way that every member has an equal chance of being included.
Null Hypothesis
A statistical proposition that asserts the absence of a difference or effect, typically to be tested against an alternative hypothesis suggesting a significant effect or relationship.
Null Hypothesis
A default hypothesis that there is no significant difference or effect, used as a basis for statistical testing.
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