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Which of the following statement is TRUE ? Select one: a) An ARMA (0,0) process is a random walk. b) A trend stationary process is
Which of the following statement isTRUE?
Select one:
a)
An ARMA (0,0) process is a random walk.
b)
A trend stationary process is a stationary process.
c)
An ARMA (7,8) process is a stationary process.
d)
Both AR(p) models and MA(q) models can be estimated by OLS.
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