If the Homogeneity of Variance Assumption Is Violated in an Independent

Multiple Choice

If the homogeneity of variance assumption is violated in an independent groups t test, this means _________.

A) the populations from which the samples were drawn have different standard deviations
B) you should use the sign test
C) the sample sizes should be equal and N greater than 30 to use the t test
D) the populations from which the samples were drawn have different standard deviations and the sample sizes should be equal and N greater than 30 to use the t test
E) all of these