Value: 15.00 points Problem 3-2 National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: Month Sales (000) Units Feb. 17 Mar. 16 Apr. 13 May. 24 Jun. 18 Jul. 21 Aug. 21 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 .40, assuming a March forecast of 16(000). (Round your intermediate calculations and final answer to 2 decimal places.) Forecast thousands (4) The naive approach. Naive approach 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