The Energy Information Administration (EIA) surveys the price of diesel fuel. The EIA-888 is a survey of diesel fuel outlet prices from truck stops and

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The Energy Information Administration (EIA) surveys the price of diesel fuel. The EIA-888 is a survey of diesel fuel outlet prices from truck stops and service stations across the country. It produces estimates of national and regional prices. The diesel fuel prices that are released are used by the trucking industry to make rate adjustments in hauling contracts. The file titled Diesel$ contains the average on-highway diesel prices for each of 53 weeks from September 27, 2004, to September 26, 2005.
a. Construct a histogram with 11 classes beginning at $1.85.
b. Are there any data points that are unusually larger than the rest of the data? In which classes do these points occur? What is the interpretation of this phenomenon?

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