Question: Climate change again Consider once again the CO2 and global temperature data of Exercise 41. The mean CO2 level for these data is 355.429 ppm.

Climate change again Consider once again the CO2 and global temperature data of Exercise 41. The mean CO2 level for these data is 355.429 ppm.

a) Find a 90% confidence interval for the mean global temperature anomaly if the CO2 level reaches 450 ppm.

b) Find a 90% prediction interval for the mean global temperature anomaly if the CO2 level reaches 450 ppm.

c) The goal of the Paris Climate agreement is equivalent to a temperature anomaly of about 1.3 °C in our data. If CO2 levels do reach 450 ppm, would this be a plausible value?

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