Fisher's Exact Test/ 2 Proportions/ Chi-square homogeneity The eastern chipmunk trills when pursued by a predator, possibly to warn other chipmunks. Burke da Silva et al. (2002) released chipmunks either 10 or 100 meters from their home burrow, and then chased them (to simulate predator pursuit). Out of 24 female chipmunks released 10 m from their burrow, 16 trilled and 8 did not trill. When released 100 m from their burrow, only 3 female chipmunks trilled, while 18 did not trill. Question being asked? Null hypothesis? X2 = degrees of freedom is equal to k-1 = X-crit at p = 0.05 = Accept or reject Ho