Which of the following is a major assumption of the t test regarding the amount of variability in each group?
A)variables normally distributed
B)sample chosen at random
C)scores are independent
D)variances are equal

Question

Quizplus · Accepted Answer

The t test assumes that the variances of the two groups being compared are equal. This is known as the assumption of homogeneity of variances. If this assumption is not met, a modified version of the t test, called the Welch's t test, should be used instead.

Which of the Following Is a Major Assumption of the T