The Kyoto Protocol was signed in 1997 and required countries to start reducing their carbon emissions The protocol became enforceable in February 2005 In 2004 the mean CO2 emission was 4 87 metric tons per capita In 2010 the CO2 emissions for a random sample of 44 countries were collected Is there enough evidence to show that the mean CO2 emission is different in 2010 than in 2004 State the random variable population parameter and hypotheses a The symbol for the random variable involved in this problem is b The wording for the random variable in context is as follows the carbon emissions of a randomly selected country in 2010 c The symbol for the parameter involved in this problem is X d The wording for the parameter in context is as follows Select an answer e Fill in the correct null and alternative hypotheses Ho C HA 22 f A Type I error in the context of this problem would be Select an answer g A Type Il error in the context of this problem would be Select an answer O