why would unequal variance cause significant errors in t-tests? what is the sample size that is unbalanced which test is appropriate to test in equality of variance how to calculate the size of the sample size by a t test what type of test uses an unequal variance why does an unequal variance test fail what is the difference between unequal variance and a normal distribution can a unbalanced sample size be tested what is the difference between the size of two groups and the variance of the sample when an unbalanced sample is large, why is the t test appropriate what is the difference between unequal and balanced sample sizes what is the difference of unequal variances what is an unequal variance what is a small unbalanced sample size what is unequal variance and why? what is the sampling size of an unbalanced sample what test does unequal variance what is the significance of large deviations from equally distributed variances what is the difference between an unbalanced sample size and a normal sample size? what is t test for unequal variance?