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Using Chi-square table finding the P-value and interpret the result

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

a) Estimate the p-value from Table F.

b) At the 5 percent level, is there evidence to conclude that location and mutation are related?

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