Motorcycle Fatalities
A traffic consultant has analyzed the factors that affect the number of motorcycle fatalities.She has come to the conclusion that two important variables are the number of motorcycle and the number of cars.She proposed the model 
(the second-order model with interaction),where y = number of annual fatalities per county,x1 = number of motorcycles registered in the county (in 10,000),and x2 = number of cars registered in the county (in 1000).The computer output (based on a random sample of 35 counties)is shown below: THE REGRESSION EQUATION IS 
S = 15.2 R−Sq = 47.2% ANALYSIS OF VARIANCE 
-{Motorcycle Fatalities Narrative} Test at the 1% significance level to determine if the interaction term should be retained in the model.
Definitions:
Bureaucratic Performance
Refers to the efficiency and effectiveness with which government bureaucracies and agencies execute policies and provide services.
Group Conformity
The act of changing one's behavior or beliefs to match those of others within a group, often to feel included or accepted.
Inequality
A condition or circumstance where individuals or groups have unequal access to opportunities, resources, and rights, leading to discrepancies in wealth, status, and power.
Urban Networks
Complex systems of cities and towns connected through economic, social, and infrastructural relationships, emphasizing the interconnectedness of urban areas.
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