Three different models of automobiles (A, B, and C) were compared for gasoline consumption. For each model of car, fifteen cars were randomly selected and subjected to standard driving procedures. The average miles/gallon obtained for each model of car and sample standard deviations are shown below. 
Use the above data and test to see if the mean gasoline consumption for all three models of cars is the same. Let = 0.05, and use both the critical and p-value approaches.
Definitions:
Additional Exercise
Exercise or physical activity that is added to an individual's existing routine to enhance health or fitness goals.
Hyperactive Children
Children who exhibit behaviors characterized by excessive movement and/or impulsiveness beyond what is typically observed at their age level.
Age Groups
Categories of populations divided by age, often used in research, surveys, and analysis to identify trends or differences between young and older populations.
Glucosamine
A natural compound found in cartilage, often used as a dietary supplement to treat joint pain and osteoarthritis.
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