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In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $42.99 with standard deviation $2.65. The weekly

In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $42.99 with standard deviation $2.65. The weekly amounts are approximately bell-shaped. Between what two values will approximately 68% of the amounts be? Approximately 68% of the amounts fall between $_______ and $_______

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