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was signed in 1997, and required countries to start reducing their carbon dioxide emissions. The protocol became enforceable in February 2005. In 2004, the

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was signed in 1997, and required countries to start reducing their carbon dioxide emissions. The protocol became enforceable in February 2005. In 2004, the mean carbon dioxide emission wa 4.87 metric tons per capita. Assume the table below contains carbon dioxide emissions from a random sample of countries from a study last year. Compute a 93% confidence interval to estimate the mean carbon dioxide emission for all countries last year. carbon dioxide emissions in metric tons per capita 1.35 7.84 2.27 0.28 2.45 2.26 0.78 0.79 0.2 2.44 1.45 4.56 5.93 5.36 5.86 7.93 3.46 0.06 2.62 5.85 1.36 1.46 6.72 3.45 1.8 3.02 6.02 2.87 5.94 0.14 2.86 9.11 2.45

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