A local juice manufacturer distributes juice in bottles labeled 12 ounces. A government agency thinks that the company is cheating its customers. The agency selects 20 of these bottles, measures their contents, and obtains a sample mean of 11.8 ounces with a standard deviation of 0.6 ounce. Use a 0.01 significance level to test the agency's claim that the company is cheating its customers. Round the test statistic to the nearest thousandth. State the test statistic and the p-value.