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Show steps please The Metropolitan Bus Company claims that the mean waiting time for a bus during rush hour is less than 4 minutes. A

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The Metropolitan Bus Company claims that the mean waiting time for a bus during rush hour is less than 4 minutes. A random sample of 20 waiting times has a mean of 2.5 minutes with a standard deviation of 2.1 minutes. At a = 0.01, test the bus company's claim. Assume the distribution is normally distributed. selected

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