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, with a standard deviation of 0.52 metric tons per capita. The table below contains a random sample of CO2 emissions in 2010. is there enough evidence to show tht mean co2 emissions is lower in 2010 than in 2004? test at the 1% levelThe 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, with a standard deviation of 0.52 metric tons per capita. the table below contains 2010s co2 emissions. is there enough evidence to show that emissions in 2010 are lower than in 2004? test at the 1% level. "1.36 6.42 5.93 5.36 5.06 9.11 7.32 4.01 5.35 7.93 6.72 0.78 1.80 4.20 2.27 5.28 6.28 3.56 5.86 3.46 1.46 5.14 2.62 4.79 7.48 6.03 8.44