Question on time series forecasting

Reference no: EM1329302

The following table shows the past two years of quarterly sales information. Assume that there are both trend and seasonal factors and that the seasonal cycle is one year. Use time series decomposition to forecast quarterly sales for the next year.

Quarter Sales
1 160
2 195
3 150
4 140

Quarter Sales
5 215
6 240
7 205
8 190

Reference no: EM1329302

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