Assignment:
A manager of a store that sells and installs spas wants to prepare a forecast for January, February, and March of next year. Her forecasts are a combination of trend and seasonality. She uses the following equation to estimate the trend component of monthly demand: Ft = 80 + 4t, where t = 0 in June of last year. Seasonal relatives are 1.05 for January, .96 for February, and .86 for March. What demands should she predict? (Round your answers to 2 decimal places.)