Pennsylvania Refining Company is studying the relationship between the pump pric

Question

Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 18 stations last Tuesday, the correlation was 0.68.

At the 0.01 significance level, is the correlation in the population greater than zero? (Round your answer to 3 decimal places.)

  The test statistic is .

Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 18 stations last Tuesday, the correlation was 0.68.

Explanation / Answer

here for test stat t=r((n-2)/(1-r2))1/2=0.68*((18-2)/(1-0.682))1/2 =3.710

therefore test stat t=3.710

please revert

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