3) seasonal adjustment analysis: Seasonal adjustment is the technique for getting rid of seasonal factors. Because this function is not equipped with ms-excel, free software – X-12-arima – is commonly used. As seasonal adjustment eliminate…

Then, what should we do for interpreting statistics? There are three major ways. Each way is introduced one by one below.1) period-on-period (year, month, quarter) analysis:By comparing the same period value (but different year), it gets p…