The Economist collects data each year on the price of a Big Mac in various countries around the world. A sample of McDonald?s restaurants in Europe in 2016 resulted in the following Big Mac prices (after conversion to U.S. dollars):

a. What characteristic of the sample indicates that the methods based on the t distribution may not be appropriate?

b. Use the Shiny app given output to estimate the mean price of a Big Mac in Europe using a 95% bootstrap confidence interval.

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3.15 2.42 4.62 4.51 3.85 3.96 4.35 4.44 3.69 3.80 3.36 4.17 Bootstrap Distribution 100 1. Sample Mean Observed Sample Mean Bootstrap Standard Error Lower Bound Upper Bound Number of Values Outside Number of Bootatrap Level Confidence CI Samples 3.860 0 180 3.400 4. 192 1000