The two tests most commonly used to see if two groups differ in some way are ______.
A) t test and correlation
B) correlation and standard deviation
C) correlation and chi-square test
D) t test and chi-square test

Question

Quizplus · Accepted Answer

The t test and chi-square test are the two most commonly used tests to determine if two groups differ. The t test is primarily used when comparing means between two groups, while the chi-square test is used for categorical data or proportions. Therefore, option D is the best choice.

The Two Tests Most Commonly Used to See If Two