Question

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

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. 11
  May. 22
  Jun. 19
  Jul. 24
  Aug. 21

   

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

    
(Fill in the blanks)

(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 19(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 .60 for August, .20 for July, and .20 for June. (Round your answer to 2 decimal places.)

     

  Weighted average_________ thousands  

Homework Answers

Answer #1

1)

1) from above linear trend forecast =14.143+8*1.179 =23.57

2) five-month moving average forecast =19.4

3)

Exponential smoothing frecast =19.07

4)

Naive approach =21

5)

Weighted average =0.6*21+0.2*24+0.2*19

=21.2

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