Emergency calls to Winter Park, Floridas 911 system, for
the past 24 weeks are as follows:
(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 =
0.1. What is the forecast for the 25th week?
(b) Reforecast each period using a = 0.6.
(c) Actual calls during the 25th week were 85. Which
smoothing constant provides a superior forecast?
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