4) Respond by True or False. (10 points) (a) The longer the forecasting horizon, the more accurate is the forecast. (b) Exponential smoothing and the moving average methods lead to the same forecast = 2/(N+1). (c) Increasing the arrival rate of items to a queueing system always increases the throughput (the output rate). (d) In an M/M/m queueing system, increasing m increases the utilization of the servers. (e) In an M/M/1/k queueing system (where k is the maximum number of items that are allowed in the system), increasing k has no impact on utilization