National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: Month/Sales (000) Units Feb 16 Mar.17 Apr. 11 May. 29 Jun. 19 Jul. 21 Aug. 21 Forecast September sales volume using each of the following: 1.A linear trend equation 2.A five-month moving average 3.Exponential smoothing with a smoothing constant equal to .30, assuming a March forecast of 16(000 4. The naive approach 5. A weighted average using .60 for August, .10 for July, and .30 for June.