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

Month	Sales (000)Units
Feb.	14
Mar.	20
Apr.	11
May.	22
Jun.	21
Jul.	25
Aug.	16

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 .20, 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 .70 for August, .10 for July, and .20 for June. (Round your answer to 2 decimal places.)

Weighted average thousands