2. Demand

Time Series — Quiz

Test your understanding of time series with 5 practice questions.

Practice Questions

Question 1

What is the cyclical component of a time series?

Question 2

Using a weighted moving average with weights 0.1, 0.3, and 0.6 on the three most recent periods with actual demands of 130, 150, and 160, what is the forecast for the next period?

Question 3

In simple exponential smoothing with $F_2=A_1=100$, actuals $A_2=110$ and $A_3=105$, and smoothing constant $\alpha=0.3$, what is the forecast $F_4$?

Question 4

Given forecast errors of +5, +2, and –5 for three periods, what is the RMSE?

Question 5

In simple exponential smoothing, what effect does a larger smoothing constant $\alpha$ have compared to a smaller $\alpha$?