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D Question 10 2.86 pts AutoTrader.com would like to test if a difference exists in the age of three different types of vehicles currently on

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D Question 10 2.86 pts AutoTrader.com would like to test if a difference exists in the age of three different types of vehicles currently on the road: trucks, cars, and vans. The following data represent the age of a random sample of trucks, cars, and vans. Trucks Cars Vans 12 8 3 8 7 7 9 10 6 11 7 8 The grand mean for these observations is O 9.3 O 8.9 O 7.2 O 8.0

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