The Bozo Sales Company has had sales for the years 2004 through 2007 have been $50,000; $64,000; $67,000; and $80,000; respectively. A. What sales would you predict for 2008 using weighted moving average with weights of 0.40 for the immediate preceding year and 0.30, 0.20, and 0.10 for the three years before that? B. What sales would you predict for 2008 using a simple four-year moving average? C. Are the answers in A and B the only predictions to use? Why?