Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is , = 19 inches. However, a survey reported that of a random sample of 46 fish caught, the mean length was * = 18.6 inches, with estimated standard deviation s = 2.7 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than u = 19 inches? Use a = 0.05. What is the value of the sample test statistic? (Round your answer to three decimal places.)