Emergency calls to the 911 system of Durham, North Carolina, for the past 6 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 α= .20. What is the forecast for week 7? (Round each forecast to 2 decimal places.)b) Reforecast each period using α= .60. (Round each forecast to 2 decimal places.)c) Actual calls during week 7 were 33. Which smoothing constant provides a superior forecast based on MAD (covering weeks 1–6)? Which smoothing constant provides the closest forecast to the actual demand in week 7?

Transcribed Image Text:

WEEK CALLS 1 50 2 35 3 25 4 40 5 45 6 35