The following ANOVA table shows the results of an experiment used to test the effect of car type and gas brand on mileage.In the experiment 4 different types of cars and 3 different brands of gas were used.Assuming no effect from the interaction between car and brand of gas,test the claim that the three brands of gas provide the same mean gas mileage. 
Definitions:
Case Study
An in-depth investigation of a single individual, group, event, or community to explore causation in order to find underlying principles.
Childhood Eating Habits
Patterns and preferences of food consumption established during childhood, significantly impacting nutritional health and development.
Nutritional Intake
The total amount of food substances consumed that provide nutritional support for an organism.
Lifespan Perspective
The study of human development from birth to death, emphasizing growth and changes at every stage of life.
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