QUESTION 26 Given the following historical data, what is the simple three-period moving average forecast for period 6? Period Value 73 1 2 3 68 65 72 67 5 Formula: fun , F = MAN 1 = -1 n where i = an index that corresponds to age of the period () = t-1 is the last period, i=t-2 is two periods back, etc., and i = t-n is the first period) n = number of periods (data points) in the moving average Ai = actual value in periodi Man = n period moving average Ft= forecast for this period (.e. period t) 67 68 69 115 68.67