Consider the following quadratic trend model and make a forecast for t = 20 and $\hat{y}$ = 15.84 + 0.98t + 0.02t². A) 35.08 B) 43.44 C) 25.80 D) 45.10

Question

Quizplus · Accepted Answer

To forecast for $ t = 20 $, we substitute $ t $ with 20 in the given quadratic trend model equation: $ \hat{y} = 15.84 + 0.98(20) + 0.02(20)^2 $. Simplifying, we get $ \hat{y} = 15.84 + 19.6 + 8 = 43.44 $.

Consider the Following Quadratic Trend Model and Make a Forecast y^\hat{y}y^​

Consider the Following Quadratic Trend Model and Make a Forecast $\hat{y}$