The Andes Mining Company mines and ships copper ore. The company's sales manager, Juanita Valdes, has been using the movingaverage method based on the last three years of sales to forecast the demand for the next year. However, she has become dissatisfied with the inaccurate forecasts being provided by this method. The annual demands (in tons of copper ore) over the past 10 years are 382,405,398,421,426,415,443,451,446,464 Click hete focthe Excel Data Fle Determine what the forecasts would have been for the past 10 years if the exponential smoothing method had been used instead with an initial estimate of 380 and a smoothing constant of a=0.5 o. What are MAD and MSE? Note: Round your answers to 2 decimal ploces. The Andes Mining Company mines and ships copper ore. The company's sales manager, Juanita Valdes, has been using the movingaverage method based on the last three years of sales to forecast the demand for the next year. However, she has become dissatisfied with the inaccurate forecasts being provided by this method. The annual demands (in tons of copper ore) over the past 10 years are 382,405,398,421,426,415,443,451,446,464 Click hete focthe Excel Data Fle Determine what the forecasts would have been for the past 10 years if the exponential smoothing method had been used instead with an initial estimate of 380 and a smoothing constant of a=0.5 o. What are MAD and MSE? Note: Round your answers to 2 decimal ploces