The monthly sales for? Yazici? Batteries,? Inc., were? as? follows:

Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec

Sales 20 20 16 12 15 15 16 17 22 22 20 23

??a) The forecast for the next? month? (Jan) using the naive? method? =_______ sales? ?(round your response to a? whole? number).

The forecast for the next? period? (Jan) using? a? 3-month moving average? approach? = ______sales? ?(round two? decimal? places).

The forecast for the next? period? (Jan) using? a? 6-month weighted average with weights of? 0.10?, 0.10?,? 0.10?, 0.20?,? 0.20?, and? 0.30?, where the heaviest weights are applied to the most recent? month? =______sales? ?(round to one? decimal? place).

Using exponential smoothing with? α ?= 0.40 and a September forecast of? 20.00?, the forecast for the next?period? (Jan)? =_____ sales? ?(round two? decimal? places).

Using a method of? trend? projection, the forecast for the next? month? (Jan)? =_____sales? ?(round two? decimal? places).

?b) The method that can be used for making a forecast for the month of March? is:

A exponential smoothing

B a? 3-month moving average

C a trend projection

D the naive method

E a? 6-month weighted moving average