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It is estimated that the average person in the United States uses 123 gallons of water per day.Some environmentalists believe this figure is too high and conduct a survey of 40 randomly selected Americans.They find a mean of 113.03 gallons and a population standard deviation of 25.99 gallons.Calculate the appropriate test statistic to test the hypotheses.
Vocabulary
The set of words known and used by a person in a language.
Tones Of Disapproval
Audible expressions or variations in vocal tone that signifies disapproval towards someone's actions or statements.
Word Boundary
The delimiter in spoken or written language that separates words within a sentence, crucial for understanding speech and reading.
Phonemes
The basic units of sound in a language that distinguish one word from another.
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