AutoTrader

Multiple Choice

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. The sum of squares within SSE for these observations is ________.

A) 22.4
B) 20.5
C) 41.8
D) 30.0