begi year, depart stor been recording sales data to be used to compute 4-period moving averages to orecast sales for an upcoming month. Sales data for the months of January through September are reported in the table below. January February March April May June July August September Month Sales 21 20 39 22 29 14 42 28 27 Computed forecast values are not rounded. Compute the four-period moving average forecast for October. value as a whole number by rounding. Specify the Compute the mean absolute deviation (MAD) for the four-period moving average orecasts. Specify the MAD as a whole number by rounding. Compute the mean squared error (MSE) for the four-period moving average orecasts. Specify the MSE as a whole number by rounding. Compute the mean absolute percentage error (MAPE) for the four-period moving average forecasts. Specify the MAPE as a whole number by rounding.

begi year, depart stor been recording sales data to be used to compute 4-period moving averages to orecast sales for an upcoming month. Sales data for the months of January through September are reported in the table below. January February March April May June July August September Month Sales 21 20 39 22 29 14 42 28 27 Computed forecast values are not rounded. Compute the four-period moving average forecast for October. value as a whole number by rounding. Specify the Compute the mean absolute deviation (MAD) for the four-period moving average orecasts. Specify the MAD as a whole number by rounding. Compute the mean squared error (MSE) for the four-period moving average orecasts. Specify the MSE as a whole number by rounding. Compute the mean absolute percentage error (MAPE) for the four-period moving average forecasts. Specify the MAPE as a whole number by rounding.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.7: Exponential Smoothing Models

Problem 29P: The file P13_29.xlsx contains monthly time series data for total U.S. retail sales of building...

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