a) Please prepare a time series forecasting model for this data. It should include compon recognize both trend and seasonality. Express your forecasting model clearly and com b) Use your forecasting model to develop daily forecasts for the coming week. PROBLEM THREE (20 POINTS) enFocus, a pump manufacturer in Granger, Indiana, is considering the possibility of building additional facility to add another product line. There are currently two options - buy an existing space or build a brand-new space. Buying an existing space will cost $2 million. If demand is low, the company expects to receive $4 million. If demand is high, it expects $6 million in revenue. For the second option, the cost is $5 million. For low demand, the company expects $5 million and if demand is high, the company expects $8 million. The probability of demand being high is 10%. What should enFocus do