Many of our National Parks are inhabited by large numbers of black bears (Ursus americanus), and their use of the Park can be a problem for humans. These creatures\' travels are governed by the need for food, as well as a high degree of natural curiosity. As it happens, some humans inadvertently or purposefully feed these bears, leading them to harass the human population. When bears become troublesome, one strategy is to transplant them Solution Let us prepare chi square table as follows H0: Transplant and gender are not associated Ha: There is associaton between them ?2 Calculations Two-way Contingency Table ?2 = 10.432, df = 2, ?2/df = 5.22 , P(?2 > 10.432) = 0.0054 As p value is less than alpha reject null hypothesis. It is statistically evident that transplant outcome was related to genderBlack Bears: Transplantation Fate by Gender MaleFemaleSuccessful32 26.85 ( 0.99)17 22.15 ( 1.20)49Returned34 43.29 ( 1.99)45 35.71 ( 2.42)79Nuisance14 9.86 ( 1.74)4 8.14 ( 2.10)188066146.

1. Many of our National Parks are inhabited by large numbers of black bears (Ursus americanus),
and their use of the Park can be a problem for humans. These creatures' travels are governed by
the need for food, as well as a high degree of natural curiosity. As it happens, some humans
inadvertently or purposefully feed these bears, leading them to harass the human population.
When bears become troublesome, one strategy is to transplant them
Solution
Let us prepare chi square table as follows
H0: Transplant and gender are not associated
Ha: There is associaton between them
?2 Calculations
Two-way Contingency Table
?2 = 10.432, df = 2, ?2/df = 5.22 , P(?2 > 10.432) = 0.0054
As p value is less than alpha
reject null hypothesis.
It is statistically evident that transplant outcome was related to genderBlack Bears:
Transplantation Fate by Gender
MaleFemaleSuccessful32
26.85
( 0.99)17
22.15
( 1.20)49Returned34
43.29
( 1.99)45
35.71
( 2.42)79Nuisance14
9.86
( 1.74)4
8.14
( 2.10)188066146