Problem 3-8Air travel on Mountain Airlines for the past 18 weeks was: WeekPassengersWeekPassengers140510440241011446342012451441513455541214464642015466742416474843317476943818482 b.Use an appropriate technique to develop a forecast for the expected number of passengers for the next three weeks. (Round your intermediate calculations to 4 decimal places and final answers to 2 decimal places.) WeekForecasted Demand 19[removed] 20[removed] 21 [removed]