Biology and Environmental Science There are approximately 1500 black bears in Great Smoky Mountains National Park. Park visitors are warned that these animals are dangerous and unpredictable, and that it is illegal to disturb or displace a black bear. To track and protect these animals, suppose a random sample of male black bears was obtained and the weight of each (in pounds) was recorded.21 Use the four methods presented in this section to determine whether there is any evidence to suggest the data are from a non-normal population.