Examlex
A t-test is used when the sample size in both groups is relatively large and the population standard deviation is known.
Business
Commercial, professional, or industrial activities conducted by individuals or organizations to earn a profit or achieve other goals.
Benefit
An advantage or profit gained from something, often used in the context of employment, services, or products.
Politeness
The behavior that is respectful and considerate of other people's feelings.
Message
A communication or statement conveyed from one person or entity to another through words, symbols, or other means.
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