Question: In answering the problems below be sure to explicitly state: A.) null and alternative hypotheses, B.) alpha levels, C.) critical values, D.) degrees of freedom, E.) tables consulted. Show all the answers on a cover sheet. Table one shows data on lithic tool counts from Weasel Cave by excavation unit and sublevel in layer 12. Since sublevel B is underneath A it is interesting to explore the degree to which the tool counts from the two sublevels may be the same or different. Table 1. Weasel cave tool counts per unit, by sublevel

One way to examine this question might be to perform a nonparametric test for independence between the units and sublevels. Using the excavation units as one variable (group the K, L, and M units together) and sublevels as the second variable (i.e. form a 3 x 2 table) test the idea that units and sublevels are independent of each other.