Question: Compare the Holt-Winters additive and multiplicative models using a = 0.7, b = 0.3, g = 0.1, and a season of six years. Try to

Compare the Holt-Winters additive and multiplicative models using a = 0.7, b = 0.3, g = 0.1, and a season of six years. Try to fine-tune the parameters using the MSE criterion

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