Question 8.296

carbon

34. Carbon Emissions. The following table represents the carbon emissions (in millions of tons) from consumption of fossil fuels for a random sample of five nations.22

Nation Emissions
Brazil 361
Germany 844
Mexico 398
Great Britain 577
Canada 631
Table 8.31: Source: U.S. Energy Information Administration.
  1. Find the critical values and for a 95% confidence interval for .
  2. Construct and interpret a 95% confidence interval for the population variance of carbon emissions.