Abox of candy costs 28.80 swiss francs in switzerland and $21.80 in the united states. assuming that purchasing power parity (ppp) holds, how many swiss francs are required to purchase one u. s. dollar? do not round the intermediate calculations and round the final answer to four decimal places

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3%. a mutual-fund rating agency randomly selects 27 months and determines the rate of return for a certain fund. the standard deviation of the rate of return is computed to be 2.19%. is there sufficient evidence to conclude that the fund has moderate risk at the alpha equals 0.05 level of significance? a normal probability plot indicates that the monthly rates of return are normally distributed.