When Conducting a Hypothesis Test for the Pearson Correlation Coefficient $\ \Sigma$

Multiple Choice

When conducting a hypothesis test for the Pearson correlation coefficient, degrees of freedom is calculated by:

A) $\ \Sigma$ (X - M_X) ².
B) (N₁ - 1) (N₂ - 1) .
C) N - 1.
D) N - 2.