Forecasts and actual sales of mp3 players at just say music, Ask an Expert

Management Studies

Forecasts and actual sales of MP3 players at Just Say Music are as follows:

Month Forecast Actual Sales

March 150 170

April 220 229

May 205 192

June 256 241

July 250 238

August 260 210

September 270 225

October 280 179

Plot the data and provide insights about the time series. (Use Microsoft Excel and attach the time series graph)

What is the forecast for November, using a two-period moving average?

What is the forecast for November, using a three-period moving average?

Compute mean square error (MSE) for the two- and three-period moving average models and compare your results.

Find the single exponential smoothing model by evaluating the MSE for Alpha 0.5. How does this model compare with the best moving average model found in 2d?

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M92597518

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