In this question we will look at a time series model of the age of the person killed in an accident.The estimated model is given in the output below.

Dependent Variable: Age of the person who died (in years)

Independent Variables:

M1, M2, ..., M11: dummy variables indicating the month of the year the accident occurred (e.g. M1 =1 if the accident occurred in January, =0 otherwise).

t= the year of the accident, t=0 in 1988.

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