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The table below shows the quarterly sales of a gifting store. The forecaster uses the Holt-Winters multiplicative model to determine the forecast for future periods.
Given: α = 0.6, β = 0.5, and γ = 0.4.
Year: Quarter | Sales |
1.1 | 150 |
1.2 | 284 |
1.3 | 119 |
1.4 | 115 |
2.1 | 187 |
2.2 | 266 |
2.3 | 138 |
2.4 | 116 |
3.1 | 170 |
3.2 | 221 |
3.3 | 124 |
3.4 | 121 |
What is the sales forecast for the 3rd quarter of year 4?
approximately 133 units