Assuming that you are the manager (CEO) of a bank and you want to offer your depositing clients an interest rate that is more attractive than your peer competing bank. The competing bank is offering an interest rate of 4.2% per annum, compounded monthly. What is the minimum interest rate per annum (in percentage in 4 decimal places), compounded semi-annually, that is as attractive as your competitor's offer? [2 marks] Please do not enter "\%" in your answer. e.g., enter "3.0000" for "0.0300" (i.e., 3% ), leaving out \%