Given the following ARMA process
Determine
a. Is this process casual?
b. is this process invertible?
c. Does the process have a redundancy problem?
Problem 2 Given the following ARMA process where {W} denotes white noise, determine: t Xe = 0.6X1+0.9X –2+WL+0.4W-1+0.21W-2 a. Is the process causal? (10 points) b. Is the process invertible? (10 po