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The average length of an elephant's trunk from a population of African forest elephantsis unknown. A random sample from the population yields a sample mean

The average length of an elephant's trunk from a population of African forest elephantsis unknown. A random sample from the population yields a sample mean of x=6.5 feet. Assume the sampling distribution of the mean has a standard deviation of x=0.9 feet.

Use the Empirical Rule to construct a 95% confidence intervalfor the true population mean length.

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