Kim’s department at a local department store has tracked the sales of a product over the last nine weeks. The demand can be seen in the table below. Period     Demand 1                24 2                23 3                26 4                36 5                26 6                30 7                32 8                26 9                25 i. Forecast demand using exponential smoothing with an alpha of 0.3, and an initial forecast of 30.0 for period 2 to 9.  ii. Use a 5-period moving average, forecast the demand up to period 9. iii. Using MAD, determine which forecasting technique is better.

Algebra & Trigonometry with Analytic Geometry
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Chapter4: Polynomial And Rational Functions
Section4.6: Variation
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Kim’s department at a local department store has tracked the sales of a product over the
last nine weeks. The demand can be seen in the table below.


Period     Demand
1                24
2                23
3                26
4                36
5                26
6                30
7                32
8                26
9                25


i. Forecast demand using exponential smoothing with an alpha of 0.3, and an initial
forecast of 30.0 for period 2 to 9. 
ii. Use a 5-period moving average, forecast the demand up to period 9.
iii. Using MAD, determine which forecasting technique is better. 

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