Question

Emergency calls to the 911 system of Durham, North Carolina, for the past 24 weeks are shown in the following table:


a) Compute the exponentially smoothed forecast of calls for each week. Assume an initial forecast of 50 calls in the first week, and use a = .2. What is the forecast for week 25?
b) Reforecast each period using a = .6.
c) Actual calls during week 25 were 85. Which smoothing constant provides a superior forecast? Explain and justify the measure of error youused.


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  • CreatedMarch 20, 2014
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