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In August a manufacturing plant had a demand and output of 39 units but they had a forecast for August of 38 units. What is the company's forecast for September demand if they use Exponential Smoothing with a smoothing constant (a) of 0.37? Note: 1- Only round your final answer (to the nearest integer). Your Answer: Answer The last four weekly values of sales were 80, 100, 105, and 90 units. The last four forecasts (for the same four weeks) were 60, 80, 95, and 83 units. Calculate Mean Absolute Deviation (MAD) for these four weeks. Note: 1- Round your final answer to 2 decimal places. Your Answer: The last four weekly values of sales were 80, 100, 105, and 90 units. The last four forecasts (for the same four weeks) were 60, 80, 95, and 70 units. Calculate the Mean Square Error (MSE) for these four weeks. Note: 1- Round your final answer to 2 decimal places. Your