Asked by Jacob Beyers on Jun 10, 2024
Verified
The Environmental Protection Agency wanted to compare the proportion of plants in violation of air quality standards for two different industries: steel and utility. Two independent samples of plants were selected and monitored. The following data was recorded: 
Test at 
= 0.01
Test statistic = ______________
Critical Value(s) = ______________
Conclusion: ______________
Interpretation: __________________________________________
Environmental Protection Agency
A U.S. government agency tasked with protecting human health and the environment through regulations and various initiatives.
Air Quality Standards
Regulations that define the maximum acceptable concentration of pollutants in the air, set to protect human health and the environment.
Independent Samples
Multiple sets of data that are independently chosen from a population without affecting each other.
- Execute hypothesis testing in applied contexts involving comparisons of two group proportions.
- Understand the use of critical values in hypothesis testing and their relation to significance levels.
Verified Answer
SM
Sydney McDanielsJun 12, 2024
Final Answer :
0.1645; 2.575, -2.575; Do not reject H0; There is NO difference in the proportion of violations between the two industries
Learning Objectives
- Execute hypothesis testing in applied contexts involving comparisons of two group proportions.
- Understand the use of critical values in hypothesis testing and their relation to significance levels.