The proper test to determine that a given sample correlation is statistically significant as an estimate of a correlation in a population is the ________.
A) z score
B) standard deviation
C) squared correlation coefficient
D) the t test

Question

Quizplus · Accepted Answer

The proper test to determine the statistical significance of the correlation coefficient is the t test. The t test allows us to determine the probability that the observed correlation in the sample occurred by chance, given the size of the sample and the strength of the correlation. The z score is used to test hypotheses about means, not correlations. The standard deviation and squared correlation coefficient are not tests for statistical significance.

The Proper Test to Determine That a Given Sample Correlation