Listed below are concentrations of carbon dioxide (in parts per million) of the earth?s atmosphere and the
Question:
Listed below are concentrations of carbon dioxide (in parts per million) of the earth?s atmosphere and the earth?s mean temperature (in ?C) for each of ten recent and consecutive years. (The last few pairs of values are projections.)
a. Use a 0.05 significance level to test for a linear correlation between carbon dioxide and temperature.b. If there is a linear correlation, can we conclude that an increase in carbon dioxide concentration causes an increase in the earth?s temperature? Why or why not?c. Find the equation of the straight line that best fits the sample data. Let x represent carbon dioxide concentration.d. What is the best predicted temperature for a year in which the concentration of carbon dioxide was 290.7 parts per million? How close is the predicted temperature to the actual temperature of 13.88?C?
Step by Step Answer:
a To test for a linear correlation between carbon dioxide and temperature we can use a Pearsons corr...View the full answer
