In: Finance
National Scan, Inc., sells radio frequency inventory tags.
Monthly sales for a seven-month period were as follows:
| Month | Sales (000)Units  | 
| Feb. | 19 | 
| Mar. | 22 | 
| Apr. | 8 | 
| May. | 24 | 
| Jun. | 19 | 
| Jul. | 27 | 
| Aug. | 22 | 
b. 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.)
Yt           
thousands
(2) A five-month moving average. (Round your answer to 2
decimal places.)
Moving average      
     thousands
(3) Exponential smoothing with a smoothing constant equal to
.25, assuming a March forecast of 17(000). (Round your
intermediate forecast values and final answer to 2 decimal
places)
Forecast           
thousands
(4) The naive approach.
Naive approach      
     thousands
(5) A weighted average using .50 for August, .15 for July, and
.35 for June. (Round your answer to 2 decimal
places.)
Weighted average thousands