National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: Month Sales (000)Units Feb. 15 Mar. 23 Apr. 12 May. 25 Jun. 19 Jul. 28 Aug. 26 b. Forecast September sales volume using each of the following: (1) A linear trend equation.(Round your intermediate calculations and final answer to 2 decimal places.) Yt thousands (2) A five-month moving average. (Round your answer to 2 decimal places.) Moving average thousands (3) Exponential smoothing with a smoothing constant equal to .20, assuming a March forecast of 14(000). (Round your intermediate forecast values and final answer to 2 decimal places) Forecast thousands (4) The naive approach. Naive approach thousands (5) A weighted average using .45 for August, .20 for July, and .35 for June. (Round your answer to 2 decimal places.) Weighted average thousands