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

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.

F_t  =80+14t

Where

F_t   Annual forecast in sales (bottles)

t= 0 corresponds to 1990