One of the most feared predators in the ocean is the great w
One of the most feared predators in the ocean is the great white shark. Although it is known that the white shark grows to a mean length of 21 feet, a marine biologist believes that the great white sharks off the Bermuda coast grow much longer due to unusual feeding habits. To test this claim, a number of full-grown great white sharks are captured off the Bermuda coast, measured and then set free. However, because the capture of sharks is difficult, costly and very dangerous, only three are sampled. Their lengths are 24, 20 and 22 feet. Do the data provide sufficient evidence to support the marine biologist’s claim? Test using= 0.1 level of significance. Assume the length of white sharks is normally distributed.
Solution
