Oil and Gas Prices 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 ( $ ) 72.74 2.754 81.22 3.083 63.26 2.806 55.36 2.311 68.19 2.464 47.61 2.309 The correlation coefficient for the data is r=0.857 and α=0.05. Should regression analysis be done? Find the equation of the regression line. Round the coefficients to at least three decimal places. y'= a +bx a= b=     Finally, find the cost of gasoline when oil is $64 a barrel. Round the answer to at least three decimal places.

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