【简答题】For a time series beginning with 1991 and extending up to 2010, which
year would be coded with a one when using the coded method?A. B. 1990 C. 1991 D. 2000
【判断题】When estimating the specific seasonals for a monthly time series, the sum of the 12 modified means should theoretically be equal to 1,200 because the average of the 12 specific seasonals is designated...