rephrase the following into a well written and relevant paragraph: Q9. What information do the MSE, MAD, and MAPE provide to a manager? How can the manager use this information? A9. Mean Squared Error (MSE) is used to determine the appropriateness of forecasting large error cost to accurate forecasts. A manager uses this method to penalize large errors. Mean Absolute Percentage Error (MAPE) measures forecast error for seasonality and demand variables. A manager utilizes this method to determine demand pattern. Mean Absolute Deviation (MAD) is the average of absolute deviation across all intervals. A manager uses this to measure forecast errors in the same unit as the original series