Question: In the following linear AR (1) model, rt is the log price of a security at time t. rt=0.00 4+rt1+at, here at is a random

In the following linear AR (1) model, rt is the log price of a security at time t.

rt=0.00 4+rt1+at,

here at is a random process obeying normal distribution N (, 2) with mean and variance 2, such as the following

at iid N (0, 0.36),

Assume further that r100 = 3.865. Compute the 95% interval forecast for r101 at the forecast origin t = 100.

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