In a sample of size n = 23, a sample correlation of r = .400 provides sufficient evidence to conclude that the population correlation coefficient exceeds zero in a right-tailed test at:
A)α = .01 but not α = .05.
B)α = .05 but not α = .01.
C)both α = .05 and α = .01.
D)neither α = .05 nor α = .01.

Question

Quizplus · Accepted Answer

The sample correlation of r = .400 with a sample size of n = 23 indicates a statistically significant positive correlation at the α = .05 level but not at the more stringent α = .01 level, based on standard statistical tables for correlation significance.

In a Sample of Size N = 23, a Sample