National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows:
MonthSales
(000)UnitsFeb.17Mar.20Apr.12May.22Jun.19Jul.24Aug.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 16(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 .60 for August, .10 for July, and .30 for June. (Round your answer to 2 decimal places.)
Weighted average thousands
