National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows:

MonthSales

(000)UnitsFeb.14Mar.20Apr.11May.22Jun.21Jul.25Aug.16

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.)

Ytthousands

(2) A five-month moving average.(Round your answer to 2 decimal places.)

Moving averagethousands

(3) Exponential smoothing with a smoothing constant equal to .20, assuming a March forecast of 17(000).(Round your intermediate forecast values and final answer to 2 decimal places)

Forecastthousands

(4) The naive approach.

Naive approachthousands

(5) A weighted average using .70 for August, .10 for July, and .20 for June.(Round your answer to 2 decimal places.)

Weighted averagethousands