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) test for the difference in two proportions.
B) test for independence.
C)a Z test for the difference in two proportions.
D)a t test for a correlation coefficient.

Question

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) test for the difference in two proportions. 
B) test for independence. 
C)a Z test for the difference in two proportions. 
D)a t test for a correlation coefficient.

Quizplus · Accepted Answer

To test for the linear relationship between two continuous variables (alcohol consumption and GPA), we need to perform a correlation analysis. The most appropriate test for this is a t-test for a correlation coefficient, also known as a Pearson correlation coefficient test. This will determine if there is a significant linear relationship between the two variables. To determine if there is a linear relationship between two continuous variables, in this case alcohol consumption and grade point average, a correlation coefficient would be appropriate. The correlation coefficient can be tested using a t-test.

If You Wanted to Find Out If Alcohol Consumption (Measured