Please show your calculation step one by one, and interpret the findings. Thank you

Brew Inc. is a coffee brewing company that has been producing for the last 3 months, as shown in the table below. Month Actual demand (in tons) 1 12 2 17 3 20 4 ? The company is now doing the forecast using the actual monthly demand. a. C. Is this quantitative or qualitative forecasting? Explain. (2 points) b. Is this causal or time-series forecasting? Explain. (2 points) Calculate a 3-month moving average forecast for month 4. (2 points) d. Calculate a 3-month weighted moving average forecast for month 4. Use weights of 0.6, 0.3, and 0.1 with the most recent observation weighted highest. (4 points). e. Calculate the forecast for months 2 and 3 using exponential smoothing forecast with a = 0.8 and B = 0.4 and the assumption that the forecast for month 1 is 11 tons and the trend over period 1 is 0 ton. (10 Points)