If any of the assumptions underlying the t test are violated to a modest extent,
A) the t test is still likely to yield an accurate estimate of statistical significance.
B) the t test will yield an accurate estimate of statistical significance, but only if the test is two-tailed.
C) a nonparametric test of statistical significance must be used instead.
D) no test of statistical significance should be performed.

Question

Quizplus · Accepted Answer

The t test is robust to modest violations of its assumptions, meaning it can still provide accurate estimates of statistical significance even if the assumptions are not perfectly met. This robustness is particularly true for violations of normality when sample sizes are large enough.

If Any of the Assumptions Underlying the T Test Are