A sporting goods company has sold the following quantities of golf bags over the six months: Jan-54, Feb-62, Mar-74, Apr-65, May-50, and June-58.
A) Using a four-month average find the July forecast
B) Using a weighed moving average of .4, .3, .2, & .1 find the July forecast
C) Using exponential smoothing with an Alpha = .20 and a June forecast of 56, find the July forecast.