If you wanted to find out if alcohol consumption (measured in fluid oz.) and grade point average on a 4-point scale are linearly related, you would perform a
A) X² test for the difference in two proportions.
B) X² test for independence.
C) a Z test for the difference in two proportions.
D) a t test for a correlation coefficient.

Question

Quizplus · Accepted Answer

A t test for a correlation coefficient would be the best choice to determine if there is a linear relationship between alcohol consumption and grade point average. This can be done by calculating the correlation coefficient (r) and then using a t-test to determine if it is significantly different from zero.

If You Wanted to Find Out If Alcohol Consumption (Measured