Exhibit 13-3: Compare the following coefficients of correlation and their corresponding Ns, then answer the questions.Notice that all correlation values are statistically significant.
-Refer to Exhibit 13-3.Which coefficient of correlation involves a greater number of degrees of freedom?
A) r = +.80 N = 80
B) r = +.32 N = 300
C) r = -32 N = 40
D) r = -.87 N = 80

Question

Quizplus · Accepted Answer

The number of degrees of freedom for a correlation coefficient is calculated as N - 2. Therefore, the option with N = 300 has the greatest number of degrees of freedom (298), making option B the correct answer.

Exhibit 13-3: Compare the Following Coefficients of Correlation and Their