In exponential smoothening method, which one of the following is true?

In simple exponential smoothing forecasting, to give higher weightage to recent demand information, the smoothing constant must be close to

Which of the following forecasting methods takes a fraction of forecast error into account for the next period forecast?

For a product, the forecast and the actual sales for December $$2002$$ were $$25$$ and $$20$$ respectively. If the exponential smoothing constant $$(\alpha )$$ is taken as $$0.2,$$ then forecast sales for January $$2003$$ would be