Information for questions 1-6: A graduate program wants to determine if first year graduate student GPA, y, is linearly related
to score on the quantitative section of the GRE,x, (Graduate Record Examinations). Data was collected from 15 randomly selected graduate students. Scores on the quantitative section of the GRE ranged from 480 to 720. The correlation between score and first year GPA is 0.529. What is the critical value for the testing if the correlation is significant at a=.05?