Question: To understand if demand for a customer segment is changing over time the company tracked historical demand for one of its products as follows: Demand

To understand if demand for a customer segment is changing over time the company tracked historical demand for one of its products as follows:

Demand Demand April 60 July 60 May 55 August 80 June 75 September 75

a. Using a simple four-month moving average, calculate a forecast for October. b. Using single exponential smoothing with a=0.2 and a September forecast =65, calculate a forecast for October. c. Using simple linear regression, calculate the trend line for the historical data. Lets say the X axis is April=1, May=2, and so on, while the Y axis is demand. d. Calculate a forecast for October using your regression formula.

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