In a sample of n = 36, the Student's t test statistic for a correlation of r = -.450 would be:
A)-2.110
B)-2.938
C)-2.030
D)can't say without knowing α.

Question

Quizplus · Accepted Answer

The formula for calculating t-test for correlation is t = r * sqrt(n-2)/sqrt(1-r^2). Plugging in the given values, we get t = (-0.45) * sqrt(36-2)/sqrt(1-(-0.45)^2) = -2.938. Therefore, the answer is option B.

In a Sample of N = 36, the Student's T