To determine if there is a statistically significant relationship between two quantitative variables, one test that can be conducted is
A) a t-test of the null hypotheses that the slope of the regression line is zero.
B) a t-test of the null hypotheses that the intercept of the regression line is zero.
C) a test that the correlation coefficient is less than one.
D) a test that the correlation coefficient is greater than one.

Question

Quizplus · Accepted Answer

A t-test of the null hypothesis that the slope of the regression line is zero is used to determine if there is a statistically significant linear relationship between two quantitative variables. If the slope is significantly different from zero, it suggests that as one variable changes, the other variable tends to change in a predictable way.

To Determine If There Is a Statistically Significant Relationship Between