Classify the hypothesis test as two-tailed, left-tailed, or right-tailed. dlo In 1992, the average duration of long-distance telephone calls originating in one town was 6.8 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the 1992 mean of 6.8 minutes. ORight-tailed O Two-tailed O Left-tailed

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