Please solve ALL parts in excel thank you.

The following gives the number of pints of type B blood used at Woodlawn Hospital in the past 6 weeks: a. Forecast the demand for the week of October 12 using a 4week moving average. b. What is the MAD? c. Use a 4-week weighted moving average, with weights of .1, .1,.2, and .6 using .6 for the most recent week. Forecast demand for the week of October 12 . d. What is the MAD? e. Compute the forecast for the week of October 12 using exponential smoothing with a forecast for August 31 of 363 and =,47 f. What is the MAD? g. Based on evaluating all three forecasting models, which forecast should be chosen