Question: Problem 4. Data from the Western Regional Climate Center for the monthly mean daily solar radiation (in Langleys?) at Zion Canyon, Utah, is shown in

Problem 4. Data from the Western Regional Climate

Problem 4. Data from the Western Regional Climate Center for the monthly mean daily solar radiation (in Langleys?) at Zion Canyon, Utah, is shown in the Excel spreadsheet tab entitled SolarRadiation. This data has a strong seasonal component. a. Use the data from 2003-2019 to develop a multiplicative Winters exponential smoothing model. Use this model to simulate one-month-ahead forecasts for the remaining months. b. Calculate the forecasting errors and discuss the reasonableness of the forecasts. C. Develop an additive Winters exponential smoothing model with the data. d. Compare the performance of the additive and multiplicative models for this data. Problem 4. Data from the Western Regional Climate Center for the monthly mean daily solar radiation (in Langleys?) at Zion Canyon, Utah, is shown in the Excel spreadsheet tab entitled SolarRadiation. This data has a strong seasonal component. a. Use the data from 2003-2019 to develop a multiplicative Winters exponential smoothing model. Use this model to simulate one-month-ahead forecasts for the remaining months. b. Calculate the forecasting errors and discuss the reasonableness of the forecasts. C. Develop an additive Winters exponential smoothing model with the data. d. Compare the performance of the additive and multiplicative models for this data

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