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. 19 Apr. 14 May. 25 Jun. 17 Jul. 24 Aug. 22 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 .30, assuming a March forecast of 20(000). (Round your intermediate forecast values and final answer to 2 decimal places) Forecast thousands (4) The naive approach. Naive approach 22 thousands (5) A weighted average using .60 for August, .20 for July, and .20 for June. (Round your answer to 2 decimal places.) Weighted average thousands.