Question: Consider the following estimated trend models. Use them to make a forecast for t = 21. a. Linear Trend: = 13.54 +1.08t b. Quadratic

Consider the following estimated trend models. Use them to make a forecast for t = 21.

a. Linear Trend: Ŷ = 13.54 +1.08t

b. Quadratic Trend: Ŷ = 18.28 + 0.92t - 0.01t2

c. Exponential Trend :In( y) = 1.8 + 0.09t; se = 0.01

In( y) = 1.8 + 0.09t; se = 0.01

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