I need help with part C only, and with steps please.

As you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years: Year Heart Transplants 1 48.0 2 50.0 3 53.0 4 54.0 5 57.0 The director of medical services predicted 6 years ago that demand in year 1 would be 44.0 surgeries. a) Using exponential smoothing with a of 0.60 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): Year S Forecast 1 44.0 2 46.4 3 48.6 4 51.2 5 52.9 6 55.2 For the forecast made using exponential smoothing with a = 0.60 and the given forecast for year 1, MAD = 3.9 surgeries (round your response to one decimal place). Using exponential smoothing with a of 0.90 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): Year 1 44.0 2 47.6 3 49.8 4 52.7 5 53.9 6 56.7 Forecast For the forecast made using exponential smoothing with a = 0.90 and the given forecast for year 1, MAD = 2.8 surgeries (round your response to one decimal place). b) Forecasts for years 4 through 6 using a 3-year moving average are (round your responses to one decimal place): b) Forecasts for years 4 through 6 using a 3-year moving average are (round your responses to one decimal place): Year Forecast 4 50.3 5 52.3 6 54.6 For forecasts made using a 3-year moving average, MAD = 4.2 surgeries (round your response to one decimal place). c) Forecasts for years 1 through 6 using the trend-projection method are (round your responses to one decimal place): 3 4 5 Year Forecast 1 D 2 D 6 D Forecast