A model that can be used to make predictions about long term future values of a time series is
A)linear trend model
B)quadratic trend model
C)both a and b
D)neither a nor b

Question

Quizplus · Accepted Answer

Both linear trend model and quadratic trend model can be used to make predictions about future values of a time series. The linear trend model assumes a straight-line relationship between time and the time series variable, while the quadratic trend model assumes a curvilinear relationship between time and the variable. The choice between the two models depends on the nature of the trend in the data. If the trend is linear, the linear trend model will be appropriate, while if the trend is curvilinear, the quadratic trend model will be more appropriate.

A Model That Can Be Used to Make Predictions About