Question

Public health and safety officials have classified the Zika virus as a hazardous threat to pregnant women in Brazil. A study based in Rio found the virus to be more active near a body of water that was found to be polluted. A study of 20 water samples found an average chemical waste of 175 g per mile with a standard deviation of 10.11 g. Find the 95% confidence interval (in g per mile) for this study. (Use a table or technology. Round your answers to three decimal places.)

Answer 1

Explanation:

We can be 95% confident that the true mean chemical waste per mile is between 155.185 g/mile and 194.815 g/mile.