SPS Programs Pyramid Lake is on the Palute 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 51 fish caught, the mean length was x = 18.5 Inches, with estimated standard deviation s = 3.4 Inches. Do these data Indicate that the average length of a trout caught In Pyramid Lake Is less than it = 19 Inches? use 19 In; HIM = 19 In OHH = 19 In; HIM > 19 In OH : u = 19 In; HIM - 19 In OH : 1 = 19 In; H : H 0.250 O 0.125