Consider the following simple AR(1) model (6.71) (1) Calculate the (unconditional) mean of yt . For the

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Consider the following simple AR(1) model

(6.71)

(1) Calculate the (unconditional) mean of yt

.

For the remainder of the question, set the constant to zero (μ = 0)

for simplicity.

(2) Calculate the (unconditional) variance of yt

.

(3) Derive the autocorrelation function for this process.

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