In each problem show all steps of the hypothesis test using PHANTOMS. If some of the assumptions are not met, note that the results of the test may not be correct and then continue the process of the hypothesis test. 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. Table 7.3.3 contains a random sample of CO2 emissions in 2010 ("CO2 emissions," 2013) from 30 countries. Is there enough evidence to show that the mean CO2 emission is lower in 2010 than in 2004? Test at the 1% level. Table #7.3.3: CO2 Emissions (in metric tons per capita) in 2010 1.36 1.42 5.93 5.36 0.06 9.11 7.32 2.86 7.93 6.72 0.78 1.80 0.20 2.27 0.28 2.44 5.86 3.46 1.46 0.14 2.62 0.79 7.48 0.86 7.84 2.87 2.45 5.85 3.45 1.45
In each problem show all steps of the hypothesis test using PHANTOMS. If some of the assumptions are not met, note that the results of the test may not be correct and then continue the process of the hypothesis test.
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. Table 7.3.3 contains a random sample of CO2 emissions in 2010 ("CO2 emissions," 2013) from 30 countries. Is there enough evidence to show that the mean CO2 emission is lower in 2010 than in 2004? Test at the 1% level.
Table #7.3.3: CO2 Emissions (in metric tons per capita) in 2010
|
1.36 |
1.42 |
5.93 |
5.36 |
0.06 |
9.11 |
7.32 |
2.86 |
|
7.93 |
6.72 |
0.78 |
1.80 |
0.20 |
2.27 |
0.28 |
2.44 |
|
5.86 |
3.46 |
1.46 |
0.14 |
2.62 |
0.79 |
7.48 |
|
|
0.86 |
7.84 |
2.87 |
2.45 |
5.85 |
3.45 |
1.45 |
|
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