A research service estimates that the mean annual consumption of vegetables and melons by people in the United States is at least 170 pounds per person. A random sample of 360 people in the United States has a mean consumption. of vegetables and melons of 168.5 pounds per year and a standard deviation of 11 pounds. At a = 0.03, is there enough evidence to reject the service's claim that the mean consumption of vegetables and melons by people in the United States is at least 170 pounds per person? (Adapted from U.S. Department of Agriculture)