The following gives the number of pints of type a blood used at woodlawn hospital in the past 6 weeks. week of: pints used: | 31 360september 7 389september 14 410september 21 381september 28 368october 5 374a. forecast the demand for the week of october 12 using a 3-week moving average. b. use a 3-week weighted moving average, with weights of .1, .3, and .6 using .6 for the most recent week. * then, forecast demand for the week of october 12.c. compute the forecast for the week of october 12 using exponential smoothing with a forecast for august 31 of 360 and a=.2