Need help with parts A,B, and C woth processss shown. Thank you !

Problem 2 A regional hospital had the following number of patient admissions during the past 8 weeks: Week 1 2 3 4 5 6 7 8 Patient 130 155 105 122 140 120 110 150 Admissions Develop a 3-week weighted average forecast for week 4 through 9 with weights of W = 0.6, W = 0.3 and W3 = 0.1. b. Forecast patient admissions for week 9 using exponential smoothing with a = 0.25. Assume that the forecast for Week 4 (F) is the nave forecast. c. Use the MSE to determine which of the two forecasting methods is more accurate