Consider the following trend models estimated from 30 observations. Linear Model: $\overset{y}{^}_{t} = 41 + 8.18 t$ Quadratic Model 2: $?_{t} = 47 + 8.32 t = 8.85 t^{2}$ a. Make a forecast for $t = 31$ and $t = 32$ with both models. (Round your answers to 2 decimal places.) b. Which is the preferred model for forecasting if, relative to the linear model, the quadratic model has higher $A^{2}$ but lower adjusted $R^{2}$ ?

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Consider the following trend models estimated from 30 observations. Linear Model:

\overset{y}{^}_{t} = 41 + 8.18 t

Quadratic Model 2:

?_{t} = 47 + 8.32 t = 8.85 t^{2}

a. Make a forecast for

t = 31

and

t = 32

with both models. (Round your answers to 2 decimal places.) b. Which is the preferred model for forecasting if, relative to the linear model, the quadratic model has higher

A^{2}

but lower adjusted

R^{2}

?

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