Money magazine reported price and related data for 418 of the most popular vehicles of the 2003 model year. One of the variables reported was the vehicle's resale value, expressed as a percentage of the manufacturer's suggested resale price. The data were classified according to size and type of vehicle. The following table shows the resale value for 10 randomly selected small cars, 10 randomly selected midsize cars, 10 randomly selected luxury cars, and 10 randomly selected sports cars (Money, March 2003).

Use α = .05 and test for any significant difference in the mean resale value among the four types of vehicles.

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