Beer Consumption. The U.S. Department of Agriculture reports in Food Consumption, Prices, and Expenditures that the average American consumed 22 gallons of beer in 2010. Suppose that you want to decide whether last year’s mean beer consumption is greater than the 2010 mean.

a. Identify the null hypothesis.

b. Identify the alternative hypothesis.

c. Classify the hypothesis test as two tailed, left tailed, or right tailed.