43%. 4:48 8. Bradley's Copiers sells and repairs photocopy machines. The manager needs weekly forecasts of service calls so that he can schedule ser- vice personnel. Use the actual de- mand in the first period for the fore- cast for the first week so error measurement begins in the second week. The manager uses exponen- tial smoothing with 0.20 Forecast the number of calls for week 6, which is next week WeekActual Service Calls 29 27 41 18 4