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 is least significant?
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 significance of a correlation coefficient is influenced by both the magnitude of the correlation and the sample size (N). Although all correlations are statistically significant, the correlation with the smallest absolute value and smallest sample size is typically the least significant. Here, r = -0.32 with N = 40 has the smallest absolute value and a relatively small sample size, making it the least significant among the options.

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