Which analysis your talking about, is it Fundamental or technical analysis? But anyway, both of them are very important to help a trader to check and monitor the market condition of a certain currency of a country whom she/he traded with.

I think analysis is important in the trading and the reason is that if we know which way the market is goes then we take the decision in the trading and it will help us to open the position in the trading so i think analysis the market is very important to get the success in the trading.