Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 20 stations last Tuesday, the correlation was 0.78.

The following hypotheses are given.

H₀: 0

H₁:> 0

a.State the decision rule for 0.01 significance level.(Round your answer to 3 decimal places.)

Reject H0 if t > ________

b.Compute the value of the test statistic.(Round your answer to 3 decimal places.)

c.Can we conclude that the correlation in the population is greater than zero? Use the 0.01 significance level. (choose the correct phrases to complete the sentence)

(Reject, Do not reject) H0. We (can, cannot) conclude that the correlation in the population is (less than, greater than) zero.