Operations Management

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. 19
  Apr. 13
  May. 25
  Jun. 16
  Jul. 23
  Aug. 23

   
 

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 [removed] thousands  

    
 

(2)

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

    
 

  Moving average [removed] thousands  

    
 

(3)

Exponential smoothing with a smoothing constant equal to .40, assuming a March forecast of 16(000). (Round your intermediate forecast values and final answer to 2 decimal places)

    
 

  Forecast [removed] thousands  

   
 

(4) The naive approach.

    
 

   Naive approach [removed] thousands  

    
 

(5)

A weighted average using .60 for August, .20 for July, and .20 for June. (Round your answer to 2 decimal places.)

     

  Weighted average [removed] thousands