The Economist publishes annually the "hamburger standard" by which they compare the prices of the McDonald's in Mac hamburger around the world. The price of the Big Mac hamburger in the US is $5.81 in October 2022 a-Use the Table above to calculate the implied exchange rate for the currencies of Switzerland, Australia.Mexice and Malaysia. b- Calculate the overvaluation or undervaluation in these currencies? Comment your answer. c. How close does the Big Mac Index conform to the theoretical requirements for the measurement of purchasing power parity(PPP)? d- In your opinion which good can serve as a better measurement of PPP