Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 13 stations last Tuesday, the correlation was 0.61. The following hypotheses are given.H0: ρ ≤ 0H1: ρ > 0a. State the decision rule for 0.100 significance level. (Round your answer to 3 decimal places.) 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 0.100 significance level.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 13 stations last Tuesday, the correlation was 0.61.

The following hypotheses are given.

H₀: ρ ≤ 0

H₁: ρ > 0

a. State the decision rule for 0.100 significance level. (Round your answer to 3 decimal places.)

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 0.100 significance level.

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