Provide an appropriate response. Which of the following statements regarding the equal-standard-deviations assumption of the pooled -tent is the most accurate? The pooled t-test is robust to moderate violations of the assumption provided the sample sizes are roughly equal. The pooled t-test is robust to moderate violations of the assumption regardless of the sample sizes. The pooled t-test is extremely nonrobust to violations of the assumption The pooled t-test is robust to moderate violations of the assumption provided the sample sizes are large