1.  Forecast September sales volume using each of the following: 
2. 
   
3. 1- The naive approach ______ thousands 
4. 
   
5. 2- A five-month moving average(round to 2 decimals) _______ thousands 
6. 
   
7. 3- A weighted average using 0.75 for August, 0.15 for July, and 0.10 for June. (round to 2 decimals) _______ thousands 
8. 
   
9. 4- Exponential smoothing with a smoothing constant equal to 0.30, assuming a March forecast of 18(000) (round to 2 decimals) ______ thousands 
10. 
    
11. 5- A linear trend equation (round to 2 decimals) ______ thousands.

National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: Sales Month (000) Units Feb. Mar. Apr. May. Jun. Jul. Aug. 16 18 13 20 22 23 28