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

Month	Sales (000)Units
Feb.	16
Mar.	19
Apr.	13
May.	21
Jun.	22
Jul.	24
Aug.	28

a. Forecast September sales volume using each of the following:

(1) The naive approach.

(2) A five-month moving average. (Round your answer to 2 decimal places.)

(3) A weighted average using 0.65 for August, 0.15 for July, and 0.20 for June. (Round your answer to 2 decimal places.)

(4) Exponential smoothing with a smoothing constant equal to 0.30, assuming a March forecast of 18(000).(Round your intermediate forecast values and final answer to 2 decimal places.)

(5) A linear trend equation. (Round your intermediate calculations and final answer to 2 decimal places.)