Consider the linear trend model with seasonality. This model is based on the assumptions that the series

________ t as a predictor,

________t² as a predictor,

_______ d₁-d₃ as three predictors, and

_______ _t as noise.

Question 2

1. (10 pts) A warehouse wants to forecast the number of orders that will arrive each day. Shown below is order volume for the past 5 days.

Day 1	412
Day 2	429
Day 3	440
Day 4	463
Day 5	487

Use Excel to construct a 2-period moving average series for making forecasts.