If the actual demand of a product is 62, a previous year's forecast is 57, and the value of smoothing constant is 0.3, what would be the forecast for the current year using exponential smoothing method of forecasting?

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JKSSB JE ME 2015 Official Paper
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  1. 58.5
  2. 60
  3. 62.5
  4. 65 

Answer (Detailed Solution Below)

Option 1 : 58.5
Free
ST 1: JKSSB JE - Surveying
20 Qs. 20 Marks 20 Mins

Detailed Solution

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Concept:

For exponential smoothing method,

where Ft-1 = previous year's forecast, Ft  = current year's forecast, Dt-1 = previous year's demand, α = smoothing constant

Calculation:

Given:

Ft-1 =  57, Dt-1 = 62, α = 0.3

t  = 58.5.

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