National scan, inc., sells radio frequency inventory tags. monthly

1. National scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows:






















  1. Forecast September sales volume using the naïve approach.


  1. Forecast September sales volume using a linear equation. a=17.43, b = 0.46.


  1. Forecast September sales volume using a five-month moving average


  1. Forecast September sales volume using a weighted average using .60 for August, .30 for July, and .10 for June.


  1. Forecast September sales volume using Exponential smoothing with a smoothing constant equal to .20, assuming a March forecast of 19.


2, A dry cleaner uses exponential smoothing to forecast equipment usage at its main plant. August usage was forecast to be 88 percent of capacity; actual usage was 89.6 percent of capacity. A smoothing constant (Alpha) of .2 is used.


a.Prepare a forecast for September.


b.  Assuming actual September usage of 92 percent, prepare a forecast for October usage.




3. A cosmetics manufacturer’s marketing department has developed a linear trend equation that can be used to predict annual sales of its popular Hand & Foot Cream.


Ft  =80+14t




Ft   Annual forecast in sales (bottles)


t= 0 corresponds to 1990

a.    Predict annual sales for the year 2006 using the equation.

4.The manager of travel agency has been using a seasonally adjusted forecast to predict demand for packaged tours. The actual and predicted values are as follows:

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