National scan, inc sells radio frequency inventory tags. Monthly sales for a seven month period were as follows: Month Feb Mar Apr May. Jun July Aug Sales (000) units 13 21 19 23 20 26 25 A. Forecast September sales volume using each of the following 1. The naive approach Naive approach..........thousands 2.A five_month moving average ( round your answer to 2 decimal places.) Moving average ........ thousands 3.A weighted average using 0.60 for August 0.15 for July and 0.25 for June ( round your answer to 2 decimal places . Weighted average...... thousands Please show how you found the solutions. Thanks