Emergency calls to the 911 system of Durham, North Carolina, for the past 24 weeks are shown
Question:
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.
Transcribed Image Text:
WEEK 123 456 7 8 9 10 11 12 50 3525 40 45 35 20 30 35 20 15 40 WEEK 13 4 15 16 1 18 1920 21 22 23 24 55 35 25 55 55 40 35 60 75 50 4 65 3 CALLS
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a and b See the following table Actual Smoothed Smoothed Week Value Value Forecast Value Forecast t ...View the full answer
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