The Holt-Winters multiplicative model differs from the Holt-Winters additive model in that the Holt-Winters multiplicative model ________.
A) is synonymous to the double exponential smoothing forecast model
B) is synonymous to the single exponential smoothing forecast model
C) applies to time series with relatively stable seasonality
D) applies to time series whose amplitude increases or decreases over time
Question 2
General Electric Corporation tracks employee turnover annually. It currently has a data set that contains turnover for the past 20 years. What type of data does it have?
A) Time-series data
B) Cross-sectional data
C) Nominal data
D) Ordinal data