Finding the chi-square test statistic value for the given set of values
One possible side effect of air pollution is genetic damage. A study designed to examine this problem exposed one group of mice air near a steel mill and another group to air in a rural area. The study compared the number of Hm-2 gene mutations in each group. The data table is below.
|
Location
|
|
Mutation
|
Steel Mill Air
|
Rural Air
|
|
Yes
|
30
|
23
|
|
No
|
|
|
|
Total
|
96
|
150
|
Work out the chi-square statistic.