10.50 The Economist collects data each year on the price of a Big Mac in various countries around the world. The price of a Big Mac for a sample of McDonald's restaurants in Europe in January 2014 resulted in the following Big Mac prices (after conversion to U.S. dollars): 5.18 4.95 4.07 4.68 5.22 4.67 4.14 4.98 5.15 5.56 5.36 4.60 The mean price of a Big Mac in the U.S. in January 2014 was $4.62. For purposes of this exercise, assume it is reasonable to regard the sample as representative of European McDonald's restaurants. Does the sample provide convincing