Suppose U_t Is the Error Term for Time Period 'T

question 8

Multiple Choice

Suppose u_t is the error term for time period 't' in a time series regression model the explanatory variables are x_t = (x_t1,x_t2 …. ,x_tk) .The assumption that the errors are contemporaneously homoskedastic implies that:

• A)Var(u_t|x_t)= √σ.
• B)Var(u_t|x_t)= ∞.
• C)Var(u_t|x_t)= σ².
• D)Var(u_t|x_t)= σ.

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