1.Has any of the key factors (inflation and interest rate) that affect exchange rate. affected the value of the taiwan currency over last five years? You need to find the correlation between inflation or interest rate in taiwan and the value of foreign currency to study this. You may use Correlation feature in excel. Here is a quick video on how to use correlation function in excel Correlation Function in Excel

https://www.youtube.com/watch?v=sGlsdHD-lcA&ab_channel=MattMacarty

2.Go to Web site of the central bank in taiwan. Determine whether this central bank intervenes to control its currency in the foreign exchange market. How has central bank intervened to change the currency value during last year?