Global warming may be due to increased concentrations of greenhouse gases such a

Question

Global warming may be due to increased concentrations of greenhouse gases such as carbon dioxide (co2co2). Here are data from the National Oceanic and Atmospheric Administration Web site (www.noaa.gov), where co2co2 is measured in parts per million by volume:

predicted carbon dioxide concentration =
311.662 + 1.43866 x (years elapsed since 1959).

(Fill in the blanks below and give your answers to 4 decimal places.)

What is the slope of this line? __(1)__

For each additional year the amount of carbon dioxide is increasing by __(2)__ parts per million by volume.

Answer 1= _______
Answer 2= _______

Step 2:
(Fill in the blank below and give your answer to 4 decimal places.)

Predict the carbon dioxide concentration for 2006. In fact, the observed value was 381.85.

Since we treat 2006 as 47 years elapsing since 1959, the predicted carbon dioxide concentration is ____.

Explanation / Answer

here from above expression of regreesion line

Answer 1) slope =1.4387

2) as slope is measure of increment in y with respect to increment in per unit of x.

hence Answer 2) =1.4387 parts per million

step 2)as 47 years elapsed hence here x=47

therefore predicted carbon dioxide concentration is from above regression equation is

=311.662+1.43866*47=379.27902

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