Ecology: Buffalo The following table shows age distribution and location of a random sample of 166 buffalo in Yellowstone National Park (based on information from The Bison of Yellowstone National Park, National Park Service Scientific Monograph Series).

Age Lamar District Nez Perce District Firehole District Row Total Calf 13 13 15 41 Yearling 10 11 12 33 Adult 34 28 30 92 Column Total 57 52 57 166 Use a chi-square test to determine if age distribution and location are independent at the 0.05 level of significance.

AppendixLO1