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      Question

      The last period’s forecast was 70 and demand

      was 60. What is the simple exponential smoothing forecast with alpha of 0.4 for the next period?
      A 63.8 Correct Answer Incorrect Answer
      B 65 Correct Answer Incorrect Answer
      C 62 Correct Answer Incorrect Answer
      D 66 Correct Answer Incorrect Answer
      E 69 Correct Answer Incorrect Answer

      Solution

      S(t-1 )= 70

      X(t) = 60

      Alpha = 0.4

      s t  = αx t +(1 – α)s t-1 = s t-1 + α(x t  – s t-1 )

      Substituting the values we get,

      0.4*60 + 0.6*70= 24 + 42= 66

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