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The t-distribution should be used when the sample size is large (n > 30) and the population standard deviation is unknown.
August 4
A date on the Gregorian calendar, notable for various historical events and individual commemorations depending on the year.
2012
A year recognized for significant global events, including the London Olympics and the speculated Mayan calendar end-of-world prediction.
Men's Spring
Refers to fashion, clothing, or activities particularly associated with men during the spring season, often highlighting seasonal changes in style and leisure pursuits.
Festive Birthday
A celebration of a person's birth anniversary marked by special decorations, activities, or a party atmosphere.
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