The file contains the percentage alcohol, number of calories per 12 ounces, and number of carbohydrates (in grams) per 12 ounces for 150 of the best-selling domestic beers in the United States. For each of the three variables, decide whether the data appear to be approximately normally distributed. Support your decision through the use of appropriate statistics and graphs. (Data extracted from www.Beerl00.com, June 1, 2012.)