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.12 May.21

Jun.23 Jul.24

Aug.27

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 .25, assuming a March forecast of 18(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 .80 for August, .05 for July, and .15 for June.(Round your answer to 2 decimal places.)

Weighted average________thousands