A Student Runs an Experiment to Study the Effect of Gas

Multiple Choice

A student runs an experiment to study the effect of gas brand and car type on mileage.She uses 3 different brands of gas on 8 different types of cars.

A) Gas brand SS: 3 df; Car type SS: 7 df; SSE: 14 df
B) Gas brand SS: 3 df; Car type SS: 4 df; SSE: 12 df
C) Gas brand SS: 1 df; Car type SS: 7 df; SSE 14 df
D) Gas brand SS: 2 df; Car type SS: 3 df; SSE: 8 df
E) Gas brand SS: 2 df; Car type SS: 7 df; SSE 14 df