the average gasoline price per gallon (in cities) and the cost of a barrel of oil are shown below for a random selection of weeks in 2015 Oil ( $ ) Gasoline ( $ ) 54.77 2.543 47.27 2.366 46.7 2.639 77.96 3.059 47.05 2.412 82.92 2.958     The correlation coefficient for the data is=r0.919 and =α0.01. Should regression analysis be done?     Find the equation of the regression line. Round the coefficients to at least three decimal places.     =y′+abx     =a     =b           Find the cost of gasoline when oil is  $65  a barrel. Round the answer to at least three decimal places.     When oil is $65 a barrel, gascosts $ per gallon.

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the average gasoline price per gallon (in cities) and the cost of a barrel of oil are shown below for a random selection of weeks in 2015


Oil (
$
)
Gasoline (
$
)
54.77
2.543
47.27
2.366
46.7
2.639
77.96
3.059
47.05
2.412
82.92
2.958
 
 

The correlation coefficient for the data is=r0.919 and =α0.01. Should regression analysis be done?

 

  Find the equation of the regression line. Round the coefficients to at least three decimal places.  
 
=y′+abx
 
 
=a
 
 
=b
 
     
  Find the cost of gasoline when oil is 
$65
 a barrel. Round the answer to at least three decimal places.
 
 
When oil is $65 a barrel, gascosts $ per gallon.
 
 
 
 
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