Data is collected on 20 teenagers to see if there is a correlation between GPA and hours spent in athletic pursuits each week. If r= -0.4, at the 0.05 level is there a negative correlation between GPA and athletic pursuits?
a. with a critical value of -1.734, p<0
b.with a critical value of -1.734, p=0
c. with a critical value of -0.946 p<0
d. with a critical value of 0.946 p>0