Question: Based on the time series plot below of quarterly e - commerce sales ( from 1 9 9 9 Q 4 through 2 0 1

Based on the time series plot below of quarterly e-commerce sales (from 1999 Q4 through 2017 Q3), which of the following statements is
true?
a. The seasonal fluctuations are constant in magnitude with increasing trend.
b. Trend analysis using the S-curve form would be an appropriate choice for these data.
c. Multiplicative decomposition would be more appropriate than additive decomposition.
d. Additive Winter's model would be more appropriate than additive decomposition.
e. Single exponential smoothing would be more appropriate than triple exponential smoothing.
Based on the time series plot below of quarterly e-commerce sales

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