National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows:
Month Sales (000)Units
Feb. 17
Mar. 16
Apr. 11
May. 22
Jun. 16
Jul. 21
Aug. 28
Forecast September sales volume using each of the following:
(1) A linear trend equation. (Round your intermediate calculations and final answer to 2 decimal places.)
(2) A five-month moving average. (Round your answer to 2 decimal places.)
(3) Exponential smoothing with a smoothing constant equal to .10, assuming a March forecast of 20(000). (Round your intermediate forecast values and final answer to 2 decimal places)